WO2003087118A2 - Verfahren zur herstellung von beta-l-2'deoxy-thymidin - Google Patents
Verfahren zur herstellung von beta-l-2'deoxy-thymidin Download PDFInfo
- Publication number
- WO2003087118A2 WO2003087118A2 PCT/EP2003/003591 EP0303591W WO03087118A2 WO 2003087118 A2 WO2003087118 A2 WO 2003087118A2 EP 0303591 W EP0303591 W EP 0303591W WO 03087118 A2 WO03087118 A2 WO 03087118A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- methyl
- thymidine
- anion
- reaction
- Prior art date
Links
- IQFYYKKMVGJFEH-CSMHCCOUSA-N telbivudine Chemical compound O=C1NC(=O)C(C)=CN1[C@H]1O[C@@H](CO)[C@H](O)C1 IQFYYKKMVGJFEH-CSMHCCOUSA-N 0.000 title claims abstract description 28
- IQFYYKKMVGJFEH-UHFFFAOYSA-N beta-L-thymidine Natural products O=C1NC(=O)C(C)=CN1C1OC(CO)C(O)C1 IQFYYKKMVGJFEH-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 31
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 claims abstract description 15
- SRBFZHDQGSBBOR-HWQSCIPKSA-N L-arabinopyranose Chemical compound O[C@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-HWQSCIPKSA-N 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 125000006239 protecting group Chemical group 0.000 claims description 31
- 239000002253 acid Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 11
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 8
- HWYJZXYVLPKDLM-UHFFFAOYSA-N methyl 2-methyl-3-oxopropanoate Chemical compound COC(=O)C(C)C=O HWYJZXYVLPKDLM-UHFFFAOYSA-N 0.000 claims description 8
- 239000011541 reaction mixture Substances 0.000 claims description 8
- IQFYYKKMVGJFEH-XLPZGREQSA-N Thymidine Chemical class O=C1NC(=O)C(C)=CN1[C@@H]1O[C@H](CO)[C@@H](O)C1 IQFYYKKMVGJFEH-XLPZGREQSA-N 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000012038 nucleophile Substances 0.000 claims description 7
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 claims description 7
- -1 2-formyl-propionic acid halide Chemical class 0.000 claims description 6
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052794 bromium Inorganic materials 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910000564 Raney nickel Inorganic materials 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 4
- OEFYPYDLUNTURE-UHFFFAOYSA-N 3,3-dimethoxy-2-methylpropanoic acid Chemical compound COC(OC)C(C)C(O)=O OEFYPYDLUNTURE-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 3
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- DUYAAUVXQSMXQP-UHFFFAOYSA-M thioacetate Chemical compound CC([S-])=O DUYAAUVXQSMXQP-UHFFFAOYSA-M 0.000 claims description 3
- 125000002306 tributylsilyl group Chemical group C(CCC)[Si](CCCC)(CCCC)* 0.000 claims description 3
- DBGVGMSCBYYSLD-UHFFFAOYSA-N tributylstannane Chemical compound CCCC[SnH](CCCC)CCCC DBGVGMSCBYYSLD-UHFFFAOYSA-N 0.000 claims description 3
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 3
- VOKUMXABRRXHAR-UHFFFAOYSA-N 2-methyl-3-oxopropanoic acid Chemical compound O=CC(C)C(O)=O VOKUMXABRRXHAR-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 239000007868 Raney catalyst Substances 0.000 claims description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 2
- 150000001241 acetals Chemical class 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 125000001891 dimethoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 2
- 239000003999 initiator Substances 0.000 claims description 2
- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 claims description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 2
- 150000001450 anions Chemical class 0.000 claims 7
- 125000003599 L-arabinosyl group Chemical group C1([C@H](O)[C@@H](O)[C@@H](O)CO1)* 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims 2
- SUMZWDXUXLTFFX-UHFFFAOYSA-N 2,2-dimethyl-3-oxopropanoic acid Chemical compound O=CC(C)(C)C(O)=O SUMZWDXUXLTFFX-UHFFFAOYSA-N 0.000 claims 1
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 claims 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical group [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims 1
- NVCDYZNRKPVGDK-UHFFFAOYSA-N n-diazonio-2-methyl-3-oxopropanimidate Chemical compound O=CC(C)C([O-])=N[N+]#N NVCDYZNRKPVGDK-UHFFFAOYSA-N 0.000 claims 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000010626 work up procedure Methods 0.000 claims 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 239000007858 starting material Substances 0.000 abstract description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 27
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 239000002904 solvent Substances 0.000 description 14
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 6
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- PYMYPHUHKUWMLA-LMVFSUKVSA-N aldehydo-D-ribose Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)C=O PYMYPHUHKUWMLA-LMVFSUKVSA-N 0.000 description 4
- 150000002918 oxazolines Chemical class 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 229940104230 thymidine Drugs 0.000 description 4
- RWQNBRDOKXIBIV-UHFFFAOYSA-N thymine Chemical compound CC1=CNC(=O)NC1=O RWQNBRDOKXIBIV-UHFFFAOYSA-N 0.000 description 4
- ASJSAQIRZKANQN-CRCLSJGQSA-N 2-deoxy-D-ribose Chemical compound OC[C@@H](O)[C@@H](O)CC=O ASJSAQIRZKANQN-CRCLSJGQSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- DWRXFEITVBNRMK-UHFFFAOYSA-N Beta-D-1-Arabinofuranosylthymine Natural products O=C1NC(=O)C(C)=CN1C1C(O)C(O)C(CO)O1 DWRXFEITVBNRMK-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 229940113082 thymine Drugs 0.000 description 3
- 0 *OCC1OCOC(C2NC2=N)C1O* Chemical compound *OCC1OCOC(C2NC2=N)C1O* 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- DRTQHJPVMGBUCF-XVFCMESISA-N Uridine Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1C(=O)NC(=O)C=C1 DRTQHJPVMGBUCF-XVFCMESISA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000001540 azides Chemical class 0.000 description 2
- SRBFZHDQGSBBOR-KLVWXMOXSA-N beta-L-arabinopyranose Chemical compound O[C@H]1CO[C@H](O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-KLVWXMOXSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000031709 bromination Effects 0.000 description 2
- 238000005893 bromination reaction Methods 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 238000007327 hydrogenolysis reaction Methods 0.000 description 2
- HQKAHZMYDADHPE-UHFFFAOYSA-N methyl 3-bromo-2-methylprop-2-enoate Chemical compound COC(=O)C(C)=CBr HQKAHZMYDADHPE-UHFFFAOYSA-N 0.000 description 2
- 229940127073 nucleoside analogue Drugs 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 239000002718 pyrimidine nucleoside Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 description 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- ZVQAVWAHRUNNPG-LMVFSUKVSA-N 2-deoxy-alpha-D-ribopyranose Chemical compound O[C@@H]1C[C@H](O)[C@H](O)CO1 ZVQAVWAHRUNNPG-LMVFSUKVSA-N 0.000 description 1
- 125000003504 2-oxazolinyl group Chemical group O1C(=NCC1)* 0.000 description 1
- YAXGBZDYGZBRBQ-UHFFFAOYSA-N 4,5-dihydro-1,3-oxazol-2-amine Chemical class NC1=NCCO1 YAXGBZDYGZBRBQ-UHFFFAOYSA-N 0.000 description 1
- WDYVUKGVKRZQNM-UHFFFAOYSA-N 6-phosphonohexylphosphonic acid Chemical compound OP(O)(=O)CCCCCCP(O)(O)=O WDYVUKGVKRZQNM-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- SRBFZHDQGSBBOR-OWMBCFKOSA-N L-ribopyranose Chemical compound O[C@H]1COC(O)[C@@H](O)[C@H]1O SRBFZHDQGSBBOR-OWMBCFKOSA-N 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007825 activation reagent Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- JCSNHEYOIASGKU-BWZBUEFSSA-N anhydrothymidine Chemical compound C1[C@H]2OC3=NC(=O)C(C)=CN3[C@@H]1O[C@@H]2CO JCSNHEYOIASGKU-BWZBUEFSSA-N 0.000 description 1
- 239000003443 antiviral agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000000089 arabinosyl group Chemical group C1([C@@H](O)[C@H](O)[C@H](O)CO1)* 0.000 description 1
- DRTQHJPVMGBUCF-PSQAKQOGSA-N beta-L-uridine Natural products O[C@H]1[C@@H](O)[C@H](CO)O[C@@H]1N1C(=O)NC(=O)C=C1 DRTQHJPVMGBUCF-PSQAKQOGSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 1
- 239000012230 colorless oil Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- GVLXNUSEDDXIGJ-UHFFFAOYSA-N methyl 2,3-dibromo-2-methylpropanoate Chemical compound COC(=O)C(C)(Br)CBr GVLXNUSEDDXIGJ-UHFFFAOYSA-N 0.000 description 1
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 230000011987 methylation Effects 0.000 description 1
- 238000007069 methylation reaction Methods 0.000 description 1
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-Butyllithium Substances [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 1
- 239000012434 nucleophilic reagent Substances 0.000 description 1
- 239000002777 nucleoside Substances 0.000 description 1
- 125000003835 nucleoside group Chemical group 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 150000002972 pentoses Chemical class 0.000 description 1
- 238000005897 peptide coupling reaction Methods 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- KOUKXHPPRFNWPP-UHFFFAOYSA-N pyrazine-2,5-dicarboxylic acid;hydrate Chemical compound O.OC(=O)C1=CN=C(C(O)=O)C=N1 KOUKXHPPRFNWPP-UHFFFAOYSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006884 silylation reaction Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- KXCAEQNNTZANTK-UHFFFAOYSA-N stannane Chemical compound [SnH4] KXCAEQNNTZANTK-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229910000083 tin tetrahydride Inorganic materials 0.000 description 1
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 description 1
- DRTQHJPVMGBUCF-UHFFFAOYSA-N uracil arabinoside Natural products OC1C(O)C(CO)OC1N1C(=O)NC(=O)C=C1 DRTQHJPVMGBUCF-UHFFFAOYSA-N 0.000 description 1
- 229940045145 uridine Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H9/00—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical
- C07H9/06—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical the hetero ring containing nitrogen as ring hetero atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/06—Pyrimidine radicals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention relates to a new, essentially four-stage process for the production of beta-L-2'-deoxy-thymidine starting from L-arabinose.
- the process according to the invention is of particular importance for the large-scale production of beta-L-2'-deoxy-thymidine.
- LdT beta-L-2'-deoxy-thymidine
- thymidine which is not directly the subject of the present invention, is the addition product of thymine and deoxyribose and as such is an important building block of DNA.
- thymidine is produced in living organisms by methylation of uridine.
- the subject of the present invention does not relate to the naturally occurring thymidine, but rather to its enantiomer, namely the beta-L-2 'deoxy- Thymidine, which corresponds formally by replacing the D-2-deoxy-ribose in natural 2-deoxy-thymidine with L-2-deoxyribose or L-2-deoxyarabinose.
- No. 4,914,233 discloses a process for the preparation of beta-2-deoxy-thymidine starting from D-ribose, which is first converted to tri-O-acetyl-tyhmidine.
- WO 01/34618 presents a complicated, multi-stage process of LdT, which starts from L-arabinose and goes through a thio intermediate.
- WO 96/13512 describes the synthesis of beta-L-2'-deoxy-uridine, which must be converted to LdT in subsequent steps.
- a similarly complicated approach is described in WO 92/08727. Again, a synthetic route is presented in which beta-L-2'-deoxy-uridine is ultimately converted to LdT
- Another object of the present invention is to develop a process with as few reaction steps as possible.
- Another task is to develop a process for LdT in which there is no need to separate an alpha-beta mixture.
- Another object of the invention is to develop an industrial process for LdT.
- Another task is to develop a large-scale process for LdT in which the use of chlorinated solvents is reduced or which can be dispensed with entirely.
- Another task is to develop an economical process for the production of LdT.
- the method according to the invention solves the problem set by a method consisting essentially of four key steps:
- L-arabinose is reacted with cyanamide to form an amino-oxazoline derivative.
- the oxazoline ring is built up from the cyanamide, the anomeric carbon atom and the oxygen in the 2-position of the arabinose.
- the further hydroxy groups of the intermediate can be blocked with or without working up the reaction mixture with customary protective groups for further undesirable reactions.
- Common protective groups are described for example in Greene et al, Protective groups in Organic Synthesis, John Wiley and Sons, Second edition 1991 or another edition thereof. The corresponding chapter of this monograph (“OH-protecting groups”) is explicitly referred to in this context and the chapter is considered part of the present description.
- the oxazoline derivative formed in the first step is represented by the general formula II:
- R is hydrogen or a protective group as defined elsewhere in this description.
- reaction product of the first step is reacted with a derivative of a 2-methyl-C-3 acid or an activated derivative thereof to give beta-L-2,2'-anhydro-thymidine according to the general formula III receive:
- the radical R here is hydrogen or a protective group as defined elsewhere in this description.
- This intermediate according to formula III is then converted in a third step into an L-thymidine derivative with a reducible carbon in the 2 'position of the general formula IN and finally in the fourth step the reaction step is reduced to LdT.
- protective group for a hydroxy protective group for example as described in the above-mentioned monograph by Greene et al. are described.
- the purpose of the protective group is in particular to prevent the free OH groups of the oxazoline derivative from reacting with the 2-methyl-C-3 acid in the second reaction step.
- the protective groups are preferably those which can be split off under acidic conditions or reductive conditions. Such protective groups have the advantage that they are split off under the reaction conditions of the third or fourth reaction step.
- Preferred protective groups are benzyl, diphenylmethyl, triphenylmethyl, or silyl protective groups, the three substituents of the silyl being selected from the group of C 1 -C 6 -alkyls and / or phenyl.
- the phenyl groups of all the protective groups mentioned can be optionally substituted, for example with C 1 -C 6 -alkyl; Nitro and / or -CC 6 alkoxy.
- Preferred protective groups are the trimethylsilyl, dimethyl-tert.butyl-silyl, diphenyl-tert.butyl-silyl and tributylsilyl protective groups.
- R in the formula element "OR” stands not only for the corresponding part of the protective group, but also for hydrogen.
- R in the term “OR” preferably represents hydrogen, benzyl, diphenylmethyl, triphenylmethyl, or silyl, the three substituents of which are selected from the group of C 1 -C 6 -alkyls and / or phenyl.
- the phenyl groups in all of the variants mentioned can be optionally substituted, for example with C 1 -C 6 -alkyl, nitro and / or dC ⁇ -alkoxy.
- the 2-methyl-C-3 acid or its derivative is preferably selected from the group methyl 2-formyl propionate, another 2-formyl propionic acid ester, 2-formyl propionitiril, azide or halide, dimethoxy or diethoxy acetal of the formyl compounds mentioned, a 3-z-2-methyl-2-propenoic acid ester, azide, halide or nitiril, where z is selected from the group F, Cl, Br, I, O-tosylate, or -C 6 alkoxy, such as methoxy, ethoxy, etc.
- the esters mentioned are preferably the methyl, ethyl, propyl butyl ester.
- the corresponding acids or activated acids can also be used.
- the activation reagents and acid adducts known from peptide coupling, for example, can be used to activate the acid.
- L-arabinose is reacted with cyanamide.
- the reaction can be carried out in an aqueous, aqueous-alcoholic (e.g. methanol) or other polar solvent. Water-methanol mixtures, dimethylformamide (DMF), pyridine, N-methylpyrolidone (NMP) and others are suitable as solvents.
- the reaction is preferably carried out at high temperatures, preferably between 50 ° C and the boiling point of the corresponding solvent, more preferably between 70 ° C and 120 ° C, most preferably between 80 ° C and 100 ° C.
- a base catalyzes the reaction. Suitable bases are, for example, ammonia, tertiary amines such as triethylamine or carbonates. Alternative reaction conditions can be found in the prior art.
- the protection of a remaining OH group of L-arabinose can optionally be connected to this step. It is not absolutely necessary for the reaction mixture of the first step to be worked up completely beforehand. As a rule, it is sufficient if the corresponding pH of the solvent is set and then the reagents necessary to protect the OH groups are added. Since water generally interferes with the reaction of alcoholic hydroxyl groups with the corresponding protective groups, the first reaction step (cyanamide coupling) is preferably carried out in this case in an anhydrous medium such as DMF, pyridine or NMP. DMF is preferably used. Since reactive bases such as ammonia can also interfere with this step, tertiary organic nitrogen bases or inorganic bases such as carbonates are preferably used as bases for the cyanamide coupling. The most preferred are alkali or dialkali carbonates.
- the OH groups are preferably protected as silyl ethers.
- remaining carbonate is first removed from the reaction mixture of the first step by adding Acid such as sulfuric acid removed.
- Acid such as sulfuric acid removed.
- the reaction conditions for silylation are then set.
- the reaction conditions can be found in the specialist literature, for example the aforementioned monograph by Greene et al.
- the oxazoline derivative obtained by the first reaction step is reacted with the 2-methyl-C-3 acid or its derivative.
- Methyl-2-formylpropionate is preferably used as the 2-methyl-C-3 acid or its derivative.
- the reaction takes place in an inert solvent under water-separating conditions, for example a C 1 -C 4 alcohol, dimethyl sulfoxide, DMF, NMP, acetone, dimethylacetamide, cyclohexane, benzene, toluene, etc.
- Preferably no alcohols are used.
- the water released can either be chemically bound or it can be removed using a water separator to accelerate the reaction.
- Catalysts can be added to the reaction, for example tertiary nitrogen bases or inorganic salts.
- tertiary nitrogen bases for example, dimethylaminopyridine, triethylamine, N-methylmorpholine, or mixtures thereof are mentioned.
- the reaction temperature is usually between 0 ° C and 150 ° C, depending on whether the released water is chemically bound or should be separated by distillation.
- the reaction temperature is preferably 20 ° C to 80 ° C (or boiling point of the solvent used).
- the resulting beta-L-2,2'-anhydro-thymidine or the OH-protected derivative thereof is also the subject of the present invention.
- the anhydro compound of the second reaction step is reacted with a nucleophile in order to cause the CO bond of the carbon atom in the 2'-position Breaking oxygen.
- the O group in the 2'-position is replaced by the nucleophile by reversing the configuration on the carbohydrate carbon.
- a halogen preferably Cl “ , Br " , T
- tosylate or thioacetate is preferably used as the nucleophile.
- the corresponding hydrogen halide acid, toluenesulfonic acid, thioacetic acid or a salt thereof can be used as the reagent.
- This reaction is preferably saturated in acid.
- HC1 or HBr is preferably used as the nucleophilic reagent.
- Suitable solvents for this reaction are DMF or trifluoroacetic acid (TFA).
- anyhdro-thymidine with acid-labile protective groups e.g. silyls such as trimethylsilyl or tributylsilyl
- acid-labile protective groups e.g. silyls such as trimethylsilyl or tributylsilyl
- the nucleophile introduced by the third reaction step is exchanged for hydrogen under reductive conditions.
- This reaction takes place under a hydrogen atmosphere, preferably in the presence of a catalyst such as Raney nickel or palladium (e.g. Pd on carbon).
- a catalyst such as Raney nickel or palladium (e.g. Pd on carbon).
- the hydrogen can be produced in situ or a tin hydride such as tributyltin hydride is used together with a radical initiator such as AIBN.
- LdT is obtained at the end of all reaction steps. This can optionally be obtained in pure form by crystallization or other purification steps.
- Step 1 2-amino-beta-D-arabinofuran [1,2 ': 4,5] -2-oxazoline-di-O-trimethylsilyl ether
- Step 2 Reaction of methyl 2-formylpropionate with the oxazoline
- Methyl methacrylate (6.0 g, 0.06 mol) is cooled to 0 ° C. and bromine (9.6 g; 0.06 mol) is added dropwise. The reaction temperature should not rise above 20 ° C. The reaction mixture is stirred for a further 2 hours (with exclusion of moisture).
- 0.229 1 2.4M n-BuLi solution in hexane is added dropwise in 90 ml of tetrahydrofuran and 60.72 g (0.6 mol) of diisopropylamine at -78 ° C. After stirring for 30 minutes, 44.50 g (0.50 mol) of methyl propionate are slowly added and the mixture is stirred at -78 ° C. for 15 minutes. 45.04 g (0.75 mol) of methyl format are then added. The yellowish suspension obtained is warmed to 0 ° C. overnight and quenched with 250 ml of 4.4M sulfuric acid. The reaction mixture is extracted with ethyl acetate, the organic phase is dried and finally removed. After distillation, 23.88 g of methyl 2-formyl propionate are obtained.
- Variant 1 Cooking in cyclohexane
- 3,3-Dimethoxy-2-methylpropionate (8.1 g; 50 mmol) is dissolved in 100 ml ice-cold 2N HC1 and stirred at RT for 1 h. The solution is cooled to 0 ° C. and carefully neutralized with 2 N NaOH. This solution is added to an aqueous solution of 15.9 g (50 mmol) oxazoline (stage 1) and calcium hydroxide (3.2 g). After stirring at RT for 24 h, the mixture is neutralized with saturated ammonium chloride solution and concentrated. The solid residue is extracted with hot ethyl acetate. The organic phases are concentrated and crystallized with the addition of hexane (1: 1 hexane / chloroform). 5.9 g (49%) of the product are obtained.
- the product can be crystallized by filtering off the inorganic constituents, concentrating and co-distilling with ethanol. Recrystallization from ethanol gives 1.7 g (80%) of the desired product.
- Variant 1 The product from stage 4 is taken up in 50 ml water and at approx. 1.5 bar in
- Step 1 2-amino-beta-D-arabinofuran [1,2 ': 4,5] -2-oxazolin-di-O-trimethylsilyl ether
- a conc. 84 g of crystalline cyanamide are added to ammonia solution (50 ml). The mixture becomes a mixture of 150 g of L-arabinose in 500 ml with stirring
- Stage 2 Reaction of methyl 2-formylpropionate with the oxazoline from stage 1 a) Synthesis of methyl 3-bromomethacrylate
- This oil is dissolved in 50 ml of methanol and added to a solution of 9.2 g of sodium methoxide in 90 ml of methanol. After stirring for 12 hours, the solution, the solvent is removed and the residue is taken up in water and extracted with ethyl acetate. The organic phase is dried and the solvent is removed. After distillation, 17 g of a fraction distilling at about 69-79 ° C. are obtained.
- a mixture of 1.5 g of the anyhdrothymidine obtained in the second stage is stirred in 40 ml of trifluoroacetic acid saturated with HBr in a steel bomb at about 35 ° C. for 2 days.
- the solvent is then removed in vacuo.
- the remaining oil is slurried in petroleum ether and the petroleum ether is removed.
- the residue is recrystallized from ethanol. Colorless crystals are obtained.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003221559A AU2003221559A1 (en) | 2002-04-12 | 2003-04-07 | Method for producing beta-l-2'deoxy-thymidine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10216426A DE10216426A1 (de) | 2002-04-12 | 2002-04-12 | Verfahren zur Herstellung von beta-L-2'Deoxy-Thymidin |
DE10216426.6 | 2002-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003087118A2 true WO2003087118A2 (de) | 2003-10-23 |
WO2003087118A3 WO2003087118A3 (de) | 2004-02-05 |
Family
ID=28458799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/003591 WO2003087118A2 (de) | 2002-04-12 | 2003-04-07 | Verfahren zur herstellung von beta-l-2'deoxy-thymidin |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030236397A1 (de) |
AU (1) | AU2003221559A1 (de) |
DE (1) | DE10216426A1 (de) |
WO (1) | WO2003087118A2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007104793A2 (en) | 2006-03-15 | 2007-09-20 | Novartis Ag | Process for preparing l-nucleic acid derivatives and intermediates thereof |
WO2009096572A1 (ja) * | 2008-01-28 | 2009-08-06 | Ajinomoto Co., Inc. | 核酸誘導体及びその中間体化合物の製造方法 |
US7595390B2 (en) | 2003-04-28 | 2009-09-29 | Novartis Ag | Industrially scalable nucleoside synthesis |
EP2157095A2 (de) | 2003-06-30 | 2010-02-24 | Novartis Ag | Synthese von Beta-L-2-Deoxynukleosiden |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001034618A2 (en) * | 1999-11-12 | 2001-05-17 | Pharmasset Limited | Synthesis of 2'-deoxy-l-nucleosides |
WO2002044194A1 (fr) * | 2000-11-29 | 2002-06-06 | Mitsui Chemicals, Inc. | Derives d'acide l-nucleique et procedes de synthese correspondants |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914233A (en) * | 1988-03-01 | 1990-04-03 | Ethyl Corporation | Synthesis of beta-thymidine |
US5008384A (en) * | 1988-07-12 | 1991-04-16 | Pfizer Inc. | Process for the production of O.sup. 2,2'-anhydro-1-(β-D-arabinofuranosyl)thymine |
-
2002
- 2002-04-12 DE DE10216426A patent/DE10216426A1/de not_active Withdrawn
-
2003
- 2003-04-07 WO PCT/EP2003/003591 patent/WO2003087118A2/de not_active Application Discontinuation
- 2003-04-07 AU AU2003221559A patent/AU2003221559A1/en not_active Abandoned
- 2003-04-14 US US10/413,020 patent/US20030236397A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001034618A2 (en) * | 1999-11-12 | 2001-05-17 | Pharmasset Limited | Synthesis of 2'-deoxy-l-nucleosides |
WO2002044194A1 (fr) * | 2000-11-29 | 2002-06-06 | Mitsui Chemicals, Inc. | Derives d'acide l-nucleique et procedes de synthese correspondants |
Non-Patent Citations (2)
Title |
---|
HOLY A: "Nucleic acid components and their analogues. CLIII. Preparation of 2'-deoxy-L-ribonucleosides of the pyrimidine series" COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, ACADEMIC PRESS, LONDON, GB, Bd. 37, 1972, Seiten 4072-4087, XP002164643 ISSN: 0010-0765 * |
I.A. MIKHAILOPULO, G.G. SIVETS: "Synthesis of peracylated derivatives of L-ribofuranose from D-ribose and their use for the preparation of beta-L-ribonucleosides" COLLECTION SYMPOSIUM SERIES, Bd. 2, 1999, Seiten 53-56, XP008022497 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7595390B2 (en) | 2003-04-28 | 2009-09-29 | Novartis Ag | Industrially scalable nucleoside synthesis |
EP2157095A2 (de) | 2003-06-30 | 2010-02-24 | Novartis Ag | Synthese von Beta-L-2-Deoxynukleosiden |
WO2007104793A2 (en) | 2006-03-15 | 2007-09-20 | Novartis Ag | Process for preparing l-nucleic acid derivatives and intermediates thereof |
WO2007104793A3 (en) * | 2006-03-15 | 2007-12-21 | Novartis Ag | Process for preparing l-nucleic acid derivatives and intermediates thereof |
WO2009096572A1 (ja) * | 2008-01-28 | 2009-08-06 | Ajinomoto Co., Inc. | 核酸誘導体及びその中間体化合物の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10216426A1 (de) | 2003-10-23 |
AU2003221559A8 (en) | 2003-10-27 |
AU2003221559A1 (en) | 2003-10-27 |
US20030236397A1 (en) | 2003-12-25 |
WO2003087118A3 (de) | 2004-02-05 |
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