Detailed Description
The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the invention.
Example 1: preparation of the target product (Ia)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (1.0mmol), Pd (dppf) Cl2(0.01mmol) and 4-pyridineboronic acid (1.2mmol) were added to 1, 4-dioxane (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 4 hours. The starting material disappeared and the reaction was complete by TLC (PE/EA: 1/1). The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (Ia).
Characterization of the target product (Ia): a white powdery solid; the yield is 77%; melting point: 275.0-275.4 ℃.1H NMR (400MHz,DMSO–d6)δ9.66(s,1H,NH),8.74-8.73(m,3H,ArH,NH),8.01(s,1H,ArH),7.93 (d,J=8Hz,2H,ArH),7.88(d,J=8Hz,2H),7.65-7.39(dd,J=8Hz,J=88Hz,4H,ArH),2.18 (s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:160.8,160.7-158.2(dd,JC-F=5Hz,JC-F=241 Hz),157.9,156.2,150.6,145.9,145.2,137.1(t,JC-F=10Hz),133.0,121.7,120.1,118.1,117.8(t, JC-F=20Hz),111.1-110.9(dd,JC-F=6Hz,JC-F=12Hz),107.2,101.7,13.8。HRMS(ESI-):m/z calcd for C23H16F2N6[M-H]-414.1405,found 413.1332。HPLC:tR=5.43min,99.86%,(λ=254 nm)。
Example 2: preparation of the target product (Ib)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 3-pyridineboronic acid (1.2mmol) were added to 1, 4-dioxane (5mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 150 ℃, and the stirring is carried out for 4 hours. The starting material disappeared and the reaction was complete by TLC (PE/EA: 1/1). The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (Ib).
Characterization of the target product (Ir): a white powdery solid; the yield is 80%; melting point: 229.1-229.5 ℃.1H NMR (400MHz,DMSO–d6)δ9.64(s,1H,NH),9.11(s,1H,ArH),8.67(d,J=8Hz,1H,ArH),8.64(s, 1H,NH),8.28(d,J=8Hz,1H,ArH),8.01(s,1H,ArH),7.80(d,J=8Hz,2H,ArH),7.96-7.41 (dd,J=8Hz,J=96Hz,4H,ArH),7.56(q,J=4Hz,1H,ArH),2.19(s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:160.8,160.7-158.3(dd,JC-F=5Hz,JC-F=240Hz),158.1,156.4, 150.0,148.2,146.0,137.3(t,JC-F=10Hz),134.7,133.4,132.9,124.4,120.1,118.0,116.6(t, JC-F=17Hz),110.9(d,JC-F=25Hz),107.1,101.6,13.8。HRMS(ESI-):m/z calcd for C23H16F2N6[M-H]-414.1405413.1332。HPLC:tR=5.41min,99.36%,(λ=254nm)。
Example 3: preparation of the target product (ic)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 5-pyrimidineboronic acid (1.0mmol) were added to 1, 4-dioxane (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 80 ℃, and the stirring is carried out for 4 hours. TLC (PE/EA: 1/1) showed no starting material and the reaction was complete. The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (ic).
Characterization of the target product (Ic): a white powdery solid; the yield is 93 percent; melting point: 248.1-248.9 ℃.1H NMR (400MHz,DMSO–d6)δ9.64(s,1H,NH),9.35(s,2H,ArH),9.28(s,1H,ArH),8.67(s,1H,NH), 8.01(s,1H,ArH),7.90(d,J=12Hz,2H,ArH),7.69-7.44(dd,J=8Hz,J=92Hz,4H,ArH), 2.19(s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:160.7,160.8-158.2(dd,JC-F=7Hz,JC-F= 239Hz),158.5,158.1,156.5,155.4,145.9,133.9(t,JC-F=10Hz),133.0,131.3,120.2,118.0, 117.4(t,JC-F=16Hz),110.1(d,JC-F=25Hz),107.1,101.6,13.8。HRMS(ESI-):m/z calcd forC22H15F2N7[M-H]-415.1357,found 414.1284。HPLC:tR=4.47min,98.60%,(λ=254nm)。
Example 4: preparation of the target product (Id)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 2-Furanboronic acid (8.0mmol) were added to toluene (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 100 ℃, and the stirring is carried out for 4 hours. The starting material disappeared and the reaction was complete by TLC (PE/EA: 1/1). The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (Id).
Characterization of the target product (Id): a white powdery solid; the yield is 90 percent; melting point: 201.3-201.9 ℃.1H NMR (400MHz,DMSO–d6)δ9.58(s,1H,NH),8.56(s,1H,NH),7.99(s,1H,ArH),7.86(d,J=4Hz, 1H,ArH),7.67-7.63(m,4H,ArH),7.42(dd,J=8Hz,J=28Hz,2H,ArH),7.24(s,1H,ArH), 2.16(s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:160.9,160.8-158.3(dd,JC-F=7Hz,JC-F= 238Hz),158.0,156.3,146.0,145.3,141.3,132.9,132.7(t,JC-F=11Hz),124.7,120.2,118.0, 115.0(t,JC-F=17Hz),109.5-109.2(dd,JC-F=6Hz,JC-F=13Hz),109.1,107.0,101.5,13.7。 HRMS(ESI-):m/z calcd for C22H15F2N5O[M-H]-403.1245,found 402.1175。HPLC:tR=6.59 min,99.32%,(λ=254nm)。
Example 5: preparation of the target product (ie)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol)Cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 3-Furanboronic acid (8.0mmol) were added to methanol (6mL) over N2The replacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 24 hours. TLC (PE/EA: 1/1) showed no starting material and the reaction was complete. The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (ie).
Characterization of the target product (Ie): a white powdery solid; the yield is 80%; melting point: 230.8-231.5 ℃.1H NMR (400MHz,DMSO–d6)δ9.58(s,1H,NH),8.53(s,1H,NH),8.43(s,1H,ArH),7.98(s,1H,ArH), 7.83(s,1H,ArH),7.66-7.62(m,4H,ArH),7.38(dd,J=8Hz,2H,ArH),7.16(s,1H,ArH),2.16 (s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:160.9,160.8-158.3(dd,JC-F=7Hz,JC-F=238 Hz),158.0,156.3,146.0,145.3,141.3,132.9,132.7(t,JC-F=11Hz),124.7,120.2,118.0,115.0(t, JC-F=17Hz),109.5-109.2(dd,JC-F=6Hz,JC-F=13Hz),109.1,107.0,101.5,13.7。HRMS(ESI-): m/z calcd forC22H15F2N5O[M-H]-403.1245,found 402.1172。HPLC:tR=6.56min,99.04%, (λ=254nm)。
Example 6: preparation of the target product (if)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 2-thiopheneboronic acid (4.0mmol) were added to 1, 4-dioxane (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 14 hours. The starting material disappeared and the reaction was complete by TLC (PE/EA: 1/1). The reaction temperature was adjusted to room temperatureThe reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2), and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (if).
Characterization of the target product (If): a white powdery solid; the yield is 90 percent; melting point: 210.5-211.7 ℃.1H NMR (400MHz,DMSO–d6)δ9.60(s,1H,NH),8.57(s,1H,NH),7.99(s,1H,ArH),7.76-7.69(dd,J =4Hz,J=20Hz,2H,ArH),7.67-7.61(dd,J=4Hz,J=16Hz,4H,ArH),7.49(d,J=8Hz,2H, ArH),7.23(t,J=4Hz,1H,ArH),2.17(s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:165.6, 165.5-163.0(dd,JC-F=6Hz,JC-F=240Hz),162.8,161.1,150.7,145.9,139.0(t,JC-F=10Hz), 137.6,134.1,132.6,130.9,124.9,122.8,120.5(t,JC-F=17Hz),114.2(d,JC-F=25Hz),111.8, 106.3,18.5。HRMS(ESI+):m/z calcd for C22H15F2N5S[M-H]-419.1016,found 418.0943。 HPLC:tR=7.23min,100%,(λ=254nm)。
Example 7: preparation of the target product (Ig)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.05mmol) and 3-thiopheneboronic acid (4.0mmol) were added to 1, 4-dioxane (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 4 hours. The starting material disappeared and the reaction was complete by TLC (PE/EA: 1/1). The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (ig).
Characterization of the target product (Ig): a white powdery solid; the yield is 77%; melting point: 264.9-265.7 ℃.1H NMR (400MHz,DMSO–d6)δ9.60(s,1H,NH),8.54(s,1H,NH),8.19(d,J=4Hz,1H,ArH),7.99(s, 1H,ArH),7.77-7.72(m,4H,ArH),7.68-7.37(dd,J=8Hz,J=108Hz,4H,ArH),2.17(s,3H, CH3)。13C NMR(100MHz,DMSO–d6)δ:165.7-162.8(dd,JC-F=28Hz,JC-F=246Hz),161.0, 165.6,162.8,161.0,150.7,144.3,140.3(t,JC-F=10Hz),137.7,132.9,131.4,128.1,124.9,122.8, 120.0(t,JC-F=17Hz),114.7(d,JC-F=22Hz),111.7,106.3,18.5。HRMS(ESI-):m/z calcd forC22H15F2N5S[M-H]-419.1016,found 418.0935。HPLC:tR=7.26min,99.71%,(λ=254nm)。
Example 8: preparation of the target product (ih)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.08mmol) and 3-fluoro-4-pyridineboronic acid (8.0mmol) were added to 1, 4-dioxane (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 4 hours. TLC (PE/EA: 1/1) showed no starting material and the reaction was complete. The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2), and a saturated brine (20 mL. times.2), and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (ih).
Characterization of the target product (Ig): a white powdery solid; the yield is 58 percent; melting point: 273.4-274.1 ℃.1H NMR (400MHz,DMSO–d6)δ9.65(s,1H,NH),8.70(s,1H,NH),8.38(d,J=4Hz,1H, pyrimidine-H),8.01-7.77(m,5H,ArH),7.67-7.41(dd,J=8Hz,J=88Hz,4H,ArH),2.18(s, 3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:161.2-157.8(dd,JC-F=8Hz,JC-F=320Hz),160.7, 158.1,156.5,152.1,146.2(d,JC-F=6Hz),145.9,135.5(t,JC-F=14Hz),133.8(t,JC-F=3Hz), 132.9,132.0(q,JC-F=5Hz),126.3(q,JC-F=43Hz),120.0,118.0,117.5(t,JC-F=23Hz), 111.6-111.3(dd,JC-F=11Hz,JC-F=12Hz),107.1,101.7,13.7。HRMS(ESI-):m/z calcd for C23H15F3N6[M-H]-432.1310,found 431.1238。HPLC:tR=5.94min,99.52%,(λ=254nm)。
Example 9: preparation of the target product (II)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 3, 5-difluoro-4-pyridineboronic acid (1.2mmol) were added to 1, 4-dioxan (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 100 ℃, and the stirring is carried out for 4 hours. TLC (PE/EA: 1/1) showed no starting material and the reaction was complete. The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (II). :
characterization of the target product (Ii): a white powdery solid; the yield is 70%; melting point: 269.1-270.0 ℃.1H NMR (400MHz,DMSO–d6)δ9.61(s,1H,NH),8.69(s,1H,NH),8.81(s,1H,ArH),7.98(d,J=12 Hz,2H,ArH),7.78(s,2H,ArH),7.66-7.41(dd,J=12Hz,J=76Hz,4H,ArH),7.42(d,J=12 Hz,2H,ArH)2.18(s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:163.8(d,JC-F=22Hz), 161.0-157.6(dd,JC-F=8Hz,JC-F=321Hz),160.6,158.0,155.5,145.9,134.7(t,JC-F=13Hz), 133.0,120.1,119.1(t,JC-F=22Hz),118.1,111.8(d,JC-F=34Hz),107.3,104.9,104.3,101.7,13.7。 HRMS(ESI-):m/z calcd for C23H14F4N6[M-H]-450.1216,found 449.1143。HPLC:tR=6.85 min,98.92%,(λ=254nm)。
Example 10: preparation of the target product (Ij)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.01mmol) and 5-trifluoromethyl-3-pyridineboronic acid (1.2mmol) were added to methanol (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 4 hours. TLC (PE/EA: 1/1) showed no starting material and the reaction was complete. The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2), and a saturated brine (20 mL. times.2), and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (ij).
Characterization of the target product (Ij): a white powdery solid; the yield is 91%; melting point: 259.4-260.3 ℃.1H NMR (400MHz,DMSO–d6)δ9.61(s,1H,NH),8.67(s,1H,NH),8.38(d,J=8Hz,1H, pyrimidine-H),8.01(s,1H,ArH),7.92-7.87(m,3H,ArH),7.75(s,1H,ArH),7.67-7.39(dd,J= 12Hz,J=88Hz,4H,ArH),2.18(s,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ:166.2-163.1 (d,JC-F=310Hz),161.1-157.7(dd,JC-F=8Hz,JC-F=320Hz),160.7,158.0,156.5,150.8(d, JC-F=11Hz),148.9(d,JC-F=21Hz),145.9,132.9,120.1,120.0,118.4(t,JC-F=22Hz),118.1, 111.4(dd,JC-F=10Hz,JC-F=13Hz),107.6-107.0(d,JC-F=52Hz),107.2,101.7,13.7。HRMS (ESI-):m/z calcd for C24H15F5N6[M-H]-482.1278,found 491.0366。HPLC:tR=7.12min, 99.62%,(λ=254nm)。
Example 11: preparation of the target product (Ik)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.08mmol) and 5-cyano-3-pyridineboronic acid (1.2mmol) were added to 1, 4-dioxan (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 170 ℃, and the stirring is carried out for 4 hours. TLC (PE/EA: 1/1) showed no starting material and the reaction was complete. The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (ik).
Characterization of the target product (Ik): a white powdery solid; the yield is 88%; melting point: 294.3-294.9 ℃.1H NMR (400MHz,DMSO–d6)δ9.60(s,1H,NH),9.39(d,J=4Hz,1H,ArH),9.10(d,J=4Hz,1H, ArH),8.86(t,J=4Hz,1H,ArH),8.64(s,1H,NH),8.01(s,1H,ArH),7.91-7.66(dd,J=8.0Hz, J=88Hz,4H,ArH),7.44(d,J=8Hz,2H,ArH),2.19(s,,3H,CH3)。13C NMR(100MHz, DMSO–d6)δ:160.8,160.6,160.5-157.9(dd,JC-F=6Hz,JC-F=246Hz),158.0,156.5,151.3(t, JC-F=3Hz),150.0(d,JC-F=5Hz),144.6,132.9(d,JC-F=5Hz),130.5(t,JC-F=11Hz),120.2,118.0, 116.5(d,JC-F=27Hz),115.6(t,JC-F=17Hz),113.0,108.8,107.4,101.6,13.8。HRMS(ESI-):m/z calcd forC24H15F2N7[M-H]-439.1357,found 438.1284。HPLC:tR=5.22min,99.05%,(λ=254 nm)。
Example 12: preparation of the target product (il)
At room temperature, 4- ((4- ((4-bromo-2, 6-difluorophenyl) amino) 5-methylpyrimidin-2-) amino) benzonitrile (1.0mmol), cesium carbonate (2.0mmol), Pd (dppf) Cl2(0.10mmol) and 4-cyano-3-pyridineboronic acid (1.2mmol) were added to 1, 4-dioxan (6mL) over N2The displacement is carried out for three times, the reaction temperature is adjusted to 110 ℃, and the stirring is carried out for 4 hours. The starting material disappeared and the reaction was complete by TLC (PE/EA: 1/1). The reaction temperature was adjusted to room temperature, and the reaction mixture was washed with a saturated sodium sulfite solution (20 mL. times.2), a saturated sodium carbonate solution (20 mL. times.2), water (20 mL. times.2) and a saturated brine (20 mL. times.2) in this order, and the organic phase was dried over anhydrous sodium sulfate overnight. Filtration, concentration and recrystallization from methanol gave a solid, the title compound (il).
Characterization of the target product (Il): a white powdery solid; the yield is 88%; melting point: 293.7-294.2 ℃.1H NMR (400MHz,DMSO–d6)δ9.64(s,1H,NH),9.30(s,1H,NH),8.69(s,1H,ArH),8.56-8.21(dd,J =8Hz,J=124Hz,2H,ArH),8.01(s,1H,ArH),7.92(d,J=8Hz,1H,ArH),7.68-7.43(dd,J= 8.0Hz,J=84Hz,4H,ArH),2.18(s,,3H,CH3)。13C NMR(100MHz,DMSO–d6)δ: 160.6,158.2(d,JC-F=7Hz),158.1,156.5,149.8,145.9,136.8,136.0,135.2(t,JC-F=10Hz),133.0, 132.5,129.6,120.2,118.0,111.6-111.4(d,JC-F=25Hz),107.2,101.6,13.8。HRMS(ESI+):m/z calcd for C24H15F2N7[M-H]-439.1357,found 438.1284。HPLC:tR=5.63min,95.39%,(λ=254 nm)。
Example 13: salifying transformation and water solubility measurement of compound
Salification transformation was performed on the target products of examples 1-12 and water solubility measurements were performed over multiple pH ranges on the salified product by a standard curve method.
Preparing a salified compound: dissolving the compound in a solvent completely at room temperature or under heating, adding the acid to be salified in N2Stirring for 18-48h under protection until a large amount of solid is separated out. Filtering to obtain the salified compound of the compound. The solvent selected here may be one or more of methanol, ethanol, n-propanol, isopropanol, n-butanol, dichloromethane, dichloroethane, tetrahydrofuran, diethyl ether, methyl tert-butyl ether, ethyl acetate, n-hexane, cyclohexane, petroleum ether. The preparation method of the hydrochloride and the water solubility test results are specifically described below by taking the target product (Ia) as an example.
The expected product (Ia) (100mg) was dissolved in 15ml of ethyl acetate at 33 ℃ and 10 drops of acid were added and stirred at 33 ℃ for 24 h. And (4) filtering to obtain a salt-forming compound of the target product after a large amount of solids are separated out. And respectively taking 5-10mg of the compound, sequentially adding the compound into buffer aqueous solutions with pH values of 2.0, 7.0 and 7.4, stirring for more than 18 hours at 20-25 ℃, filtering to obtain supernate, and testing the water solubility of the compound in various pH ranges by reverse phase HPLC analysis. The water solubility results are shown in table 1:
TABLE 1 Water solubility results for the target product (Ia) and salt-forming complexes thereof
Other examples salt formation modification of the target product, as well as water solubility measurements, have similar results to those described above and are not listed.
Example 14: anti-HIV biological Activity assay
Examples 1-12 in vitro cellular anti-HIV viral activity of target products was determined by the Rega pharmaceutical research institute at the university of Katholleke, belgium, and consists essentially of: inhibiting activity and cytotoxicity on HIV-infected MT-4 cells. The method comprises the following steps: the protective effect of test compounds on HIV-induced cytopathic effects was determined by MTT assay in HIV-infected MT-4 cells at various times during HIV infection, and the concentration required to protect 50% of MT-4 cells from HIV-induced cytopathic effects was calculatedDegree-half effective concentration EC50Toxicity assay was performed in parallel with anti-HIV activity assay, and the concentration (CC) at which 50% of uninfected cells were cytopathic was measured by MTT method in MT-4 cell culture50) And calculating the selectivity index SI ═ CC50/EC50。
The material and the method are as follows:
the anti-HIV activity of the test compound is evaluated by the efficiency of the test compound in inhibiting the cytopathy caused by HIV in cells. MT-4 cells were used for cell culture. The viral strains used were: HIV-1 strain IIIB and HIV-2 strain ROD.
The specific operation is as follows: dissolving the compound to be tested in DMSO or water, diluting with phosphate buffer saline solution in gradient, adding 100 μ L of compound solution to be tested with different concentrations into 3 × 105MT-4 cells were pre-cultured at 37 ℃ for 1 hour, and then 100. mu.L of a virus diluent of an appropriate concentration was added to the pre-cultured cells, and the MT-4 cells were cultured at 37 ℃ for 1 hour. After three washes, MT-4 cells are resuspended in culture medium with and without test compound, respectively. MT-4 cells were then incubated in 5% CO2The culture medium was incubated at 37 ℃ for another 7 days in the atmosphere and the previously consumed corresponding culture medium was replaced with culture medium containing and not containing the test compound, respectively, on the third day after infection to supplement the culture medium. Each cultivation process was repeated twice. Virus-induced cytopathic effects were monitored daily by reverse light microscopy. Typically, the viral dilutions used in this experiment often lead to cytopathic effects the fifth day after viral infection. The inhibitory concentration of the drug is that concentration at which the drug produces 50% inhibition of virus-induced cytopathic effects while not being directly toxic to cells (CC)50) And (4) showing. It is emphasized that, when the test compound is poorly water soluble and DMSO is required to dissolve, the DMSO concentration is generally less than 10% relative to water (the final concentration of DMSO in MT-4 cell culture medium is less than 2%). Since DMSO affects the antiviral activity of the test compound, it is necessary to perform the antiviral activity assay using a blank containing the same concentration of DMSO solution. In addition, the final DMSO concentration (1/1000) is much lower than the replication of HIV-1 in T cellsThe desired concentration.
The results of the inhibitory activity of the target products of examples 1-12 on HIV using the marketed drugs Nevirapine (NVP), Efavirenz (Efavirenz, EFV) and Etravirine (Etravirine, ETV) as controls are shown in Table 2 (anti-HIV activity and cytotoxicity of the target products of examples 1-12 in MT-4 cells), and compounds 11a-l in Table 2 correspond to the target products of examples 1-12, respectively.
TABLE 2[a]
aAll data represent the mean of at least three independent experiments;bEC50an effective concentration to protect 50% of the cells from viral infection;cCC50the drug concentration when 50% of cells are diseased;dSI selection index, CC50Value and EC50The ratio of the values is used for judging the safety range of the drug effect.
Experimental results show that the target products of examples 1-12 have strong anti-HIV-1 virus activity, can remarkably inhibit virus replication in MT-4 cells infected by HIV-1 virus, and have small cytotoxicity and high selectivity index.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby, and the technical parameters and raw material components which are not described in detail herein can still obtain the same or similar technical effects as the above embodiments when they are changed within the range of the parameters recited in the present invention, and still fall within the scope of the present invention. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein or by using equivalent process changes made by the content of the present specification, and are included in the scope of the present invention.