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CN108264476A - A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate - Google Patents

A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate Download PDF

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CN108264476A
CN108264476A CN201810051599.XA CN201810051599A CN108264476A CN 108264476 A CN108264476 A CN 108264476A CN 201810051599 A CN201810051599 A CN 201810051599A CN 108264476 A CN108264476 A CN 108264476A
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dimethyl
reaction
buddhist nun
oxa
benzos
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董丹丹
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
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Abstract

A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate, and the anticancer drug Ai Li replaces 6,11 dihydro 5H benzos [b] carbazole of Buddhist nun's intermediated chemistry 8 hydroxyl of entitled 9 ethyl, 6,6 dimethyl, 11 oxa-, 3 formonitrile HCN;The present invention provides one kind with 2 methoxyl group, 5 hydroxyl, 8 dimethyl 7, 8 dihydronaphthalene, 7 ketone is starting material through chlorination, oxidation reaction, substitution reaction, alkylated reaction, ring-closure reaction, substitution reaction, reduction reaction, cyanation obtains 9 ethyls 6, 6 dimethyl, 8 hydroxyl, 11 oxa- 6, 11 dihydro 5H benzos [b] carbazole, 3 formonitrile HCN, preparation process is succinct, raw material is easy to get, synthesis condition is simple, it is economic and environment-friendly, product yield is high with product purity, it is advantageously implemented industrialization, reduce manufacturing cost, suitable for producing in enormous quantities, the new anticancer drug Ai Li sought is meaningful for the economic technology of Buddhist nun for Ai Li for the preparation method of Buddhist nun's intermediate.

Description

A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate
Technical field
The present invention relates to the preparation methods that pharmaceutical technology field more particularly to a kind of anticancer drug Ai Li replace Buddhist nun's intermediate.
Background technology
Ai Li is by the Choongwae Pharmacutical Corp of Japan of branch company of Roche Holding Ag (Roche) for Buddhist nun (Alectinib) A kind of new anaplastic lymphoma kinase (ALK) inhibitor of (Chugai Pharmaceutical) exploitation, for treating ALK bases Because of the Patients with Non-small-cell Lung of rearrangement, since it replaces Buddhist nun (Crizotinib) drug resistant patient still effective, and energy gram azoles Brain metastes are substantially reduced, Ai Li is as follows for the structural formula of Buddhist nun:
Ai Li is prepared at present to replace there are many synthetic methods of Buddhist nun, but mostly finally carry out preparation Ai Li by preparing intermediate For Buddhist nun, wherein mesosome chemical name is 9- ethyl -6,6- dimethyl -8- hydroxyls -11- oxa-s -6,11- dihydro -5H- benzos [b] click Azoles -3- formonitrile HCNs, structural formula are as follows:
And it is existing preparation Ai Li for Buddhist nun's intermediate 9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa-s -6,11- dihydro - 5H- benzos [b] are not suitable for large-scale production, need to carry out multiple radical protection although the method yield of carbazole -3- formonitrile HCNs can manage it With deprotection reaction, waste is caused, therefore there is an urgent need for a kind of simple, high income preparation wherein mesosome 9- ethyls -6,6- bis- The method of methyl -8- hydroxyls -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole -3- formonitrile HCNs.
Invention content
A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate;The present invention provides one kind with 2- methoxyl group -5- hydroxyls - 7,8 dihydronaphthalene -7- ketone of base -8- dimethyl for starting material through chlorination, oxidation reaction, substitution reaction, alkylated reaction, Ring-closure reaction, substitution reaction, reduction reaction, cyanation obtain 9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa-s -6,11- Dihydro -5H- benzos [b] carbazole -3- formonitrile HCNs, preparation process is succinct, and raw material is easy to get, and synthesis condition is simple, economic and environment-friendly, production Product yield and product purity are high, are advantageously implemented industrialization, reduce manufacturing cost, suitable for producing in enormous quantities, seek newly Anticancer drug Ai Li is meaningful for the economic technology of Buddhist nun for Ai Li for the preparation method of Buddhist nun's intermediate.
To achieve the above object, the specific route of preparation method of the invention is as follows:
Technical scheme of the present invention is implemented as follows:
A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate, comprises the following steps that:
A. chlorination
1. -7,8 dihydronaphthalene -7- ketone of 2- methoxyl group -5- hydroxyl -8- dimethyl is added to the body of organic solvent and water first Product is than being 1:1.1~1:In 1.5 mixed liquor, chlorinating agent is secondly added in, reaction is stirred well to and terminates, be adjusted to sodium hydroxide PH value is 9~10, finally filters, is dry, obtaining chloro- 8- dimethyl -7,8 dihydronaphthalene of 2- methoxyl group -5- hydroxyls 7- 2..
B. oxidation reaction
Acid solution is prepared by acid is soluble in water first, is added in oxidant, is secondly added in organic solvent and the volume ratio of water is 1:1.2~1:1.6 mixed liquor, stirs evenly, heating water bath to 100 DEG C, be eventually adding the 2- methoxyl groups that are obtained in step A- 2. chloro- 8- dimethyl -7,8 dihydronaphthalene of 5- hydroxyls 7-, is stirred continuously, reaction a period of time is cooled down, filtered, dried, obtain to terminating To chloro- -5,6,7,8 naphthane -5- ketone of 8- dimethyl of 2- methoxyl groups -7- 3..
C. substitution reaction
Chloro- -5,6,7,8 naphthane -5- ketone of 8- dimethyl of 2- methoxyl groups -7- that Sodamide and step B are obtained is 3. by object The ratio between amount of matter is 1:1~1:It is added in reaction vessel after 1.3 mixing, then adds in 40~80ml of liquefied ammonia, it is stirred at room temperature 1~ 3 hours, TLC detections terminated, and reaction solution is poured into ice water and is filtered, 2- methoxyl group -7- amino -8- two is obtained by filtration cakes torrefaction - 5,6,7,8 naphthane -5- ketone of methyl is 4..
D. alkylated reaction
Aqueous slkali is prepared by alkali is soluble in water, and the volume ratio for adding in organic solvent and water is 1:1.5~1:2.5 mixing Liquid adds in the 2- methoxyl group -7- amino -8- dimethyl that alkylating reagent is obtained with step C after stirring
4. -5,6,7,8 naphthane -5- ketone are 1 by the ratio between amount of substance:1.4~1:1.7 mixture is protected in nitrogen Under be sufficiently mixed stirring, occur alkylated reaction at 80~90 DEG C, generate N-2- methoxyl groups -7- [(3- nitrobenzophenones) ammonia Base] -8- dimethyl -5,6,7,8 naphthane -5- ketone 5..
E. ring-closure reaction
By -5,6,7,8 tetrahydrochysene of the N-2- methoxyl groups -7- generated in step D [(3- nitrobenzophenones) amino] -8- dimethyl Naphthalene -5- ketone 5. add in fill organic solvent and water volume ratio be 1:1.5~1:In the reaction vessel of 2 mixed liquor, ring is added in Mixture is sufficiently stirred, and 3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa- -6 are generated through ultraviolet light-initiated ring-closure reaction, 11- dihydro -5H- benzos [b] carbazole is 6..
F. substitution reaction
3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa- -6, the 11- dihydro -5H- benzos that will be generated in step E 6. [b] carbazole is 1 by the ratio between amount of substance with chloroethanes:0.5~1:0.8 mixing, is dissolved in tetrahydrofuran, adds in catalyst, It is sufficiently mixed stirring under nitrogen protection, generates 9- ethyl -3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa-s -6,11- Dihydro -5H- benzos [b] carbazole is 7..
G. reduction reaction
It is first 1 by volume by hydroiodic acid and ethyl alcohol:1~1:1.5, in being mixed in container, secondly add in step F 9- ethyls -3- nitro -6,6- dimethyl -8- methoxyl groups -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole of middle generation 7., It is stirred continuously, reacts at room temperature 2~4 hours, generation reduction reaction, generation 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyls - 11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 8..
H. cyanation
First by 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyl -11- oxa-s -6, the 11- dihydro generated in step G - 5H- benzos [b] carbazole 8. add in fill organic solvent and hydrochloric acid volume ratio be 1:1.2~1:The reaction of 1.5 mixed liquor is held In device, metallic catalyst is added under water-less environment, is sufficiently mixed stirring, after reacting 12~15 hours, TLC detections are completed, It is secondary that it is cuprous that sodium nitrite and nitrile are added in into reaction vessel by the ratio between amount of substance is 1:1~1:1.2 mixture, the reaction was continued 8~10 hours, cyanation occurs, generates 9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa- -6,11- dihydro -5H- benzos 9., i.e. Ai Li replaces Buddhist nun's intermediate to [b] carbazole -3- formonitrile HCNs.
Organic solvent in the A is that the ratio between trifluoromethanesulfanhydride anhydride and phosphorus oxychloride volume are 1:1 mixed liquor, the chlorine Agent is chloric acid acid anhydride.
Acid in the step B is 90% sulfuric acid, and the oxidant is sodium dichromate or potassium bichromate, described organic molten Agent is acetonitrile, n,N-Dimethylformamide (DMF), toluene, Isosorbide-5-Nitrae dioxane or tetrahydrofuran, the reaction time for 10~ 12 hours.
Alkali in the step D is sodium hydroxide, potassium hydroxide or lithium hydroxide, and the organic solvent is triethylamine, pyrrole Pyridine, N- methylmorpholines or diisopropylethylamine, the alkylating reagent are 3- bromo nitrobenzenes.
Solvent in the step E is N-Methyl pyrrolidone or tert-pentyl alcohol, and the cyclizing agent is benzoyl peroxide.
Catalyst in the step F is alchlor.
Organic solvent in the step H is ethyl alcohol, ether, benzene or oil, and the metallic catalyst is iron or tin.
Illustrate the present invention in detail below:
A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate, comprises the following steps that:
A. chlorination
1. -7,8 dihydronaphthalene -7- ketone of 2- methoxyl group -5- hydroxyl -8- dimethyl is added to the body of organic solvent and water first Product is than being 1:1.1~1:In 1.5 mixed liquor, chlorinating agent is secondly added in, reaction is stirred well to and terminates, be adjusted to sodium hydroxide PH value is 9~10, finally filters, is dry, obtaining chloro- 8- dimethyl -7,8 dihydronaphthalene of 2- methoxyl group -5- hydroxyls 7- 2..
The purpose of the organic solvent used in step A is to dissolve starting material 2- methoxyl group -5- hydroxyl -8- diformazans - 7,8 dihydronaphthalene -7- ketone of base is 1..
It is 9~10 to adjust pH value, is to ensure that reaction process intermediate ion is precipitated, yield is higher.
B. oxidation reaction
Acid solution is prepared by acid is soluble in water first, is added in oxidant, is secondly added in organic solvent and the volume ratio of water is 1:1.2~1:1.6 mixed liquor, stirs evenly, heating water bath to 100 DEG C, be eventually adding the 2- methoxyl groups that are obtained in step A- 2. chloro- 8- dimethyl -7,8 dihydronaphthalene of 5- hydroxyls 7-, is stirred continuously, reaction a period of time is cooled down, filtered, dried, obtain to terminating To chloro- -5,6,7,8 naphthane -5- ketone of 8- dimethyl of 2- methoxyl groups -7- 3..
Heating water bath is to reduce reaction impurities, ensures that reaction yield is higher to 100 DEG C in step B.
C. substitution reaction
Chloro- -5,6,7,8 naphthane -5- ketone of 8- dimethyl of 2- methoxyl groups -7- that Sodamide and step B are obtained is 3. by object The ratio between amount of matter is 1:1~1:It is added in reaction vessel after 1.3 mixing, then adds in 40~80ml of liquefied ammonia, it is stirred at room temperature 1~ 3 hours, TLC detections terminated, and reaction solution is poured into ice water and is filtered, 2- methoxyl group -7- amino -8- two is obtained by filtration cakes torrefaction - 5,6,7,8 naphthane -5- ketone of methyl is 4..
D. alkylated reaction
Aqueous slkali is prepared by alkali is soluble in water, and the volume ratio for adding in organic solvent and water is 1:1.5~1:2.5 mixing Liquid adds in 2- methoxyl group -7- amino -8- dimethyl -5,6 that alkylating reagent is obtained with step C, 7,8 naphthane -5- after stirring 4. ketone is 1 by the ratio between amount of substance:1.4~1:1.7 mixture is sufficiently mixed stirring under nitrogen protection, in 80~90 DEG C Lower generation alkylated reaction, generation N-2- methoxyl groups -7- [(3- nitrobenzophenones) amino] -8- dimethyl -5,6,7,8 naphthanes - 5- ketone is 5..
The alkylating reagent added in step D is to make -5,6,7,8 tetrahydrochysene of 2- methoxyl group -7- amino -8- dimethyl 4. naphthalene -5- ketone is alkylated, easily generate alkylate.
E. ring-closure reaction
By -5,6,7,8 tetrahydrochysene of the N-2- methoxyl groups -7- generated in step E [(3- nitrobenzophenones) amino] -8- dimethyl Naphthalene -5- ketone 5. add in fill organic solvent and water volume ratio be 1:1.5~1:In the reaction vessel of 2 mixed liquor, ring is added in Mixture is sufficiently stirred, and 3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa- -6 are generated through ultraviolet light-initiated ring-closure reaction, 11- dihydro -5H- benzos [b] carbazole is 6..
In step D add in cyclizing agent be in order to promote N-2- methoxyl groups -7- [(3- nitrobenzophenones) amino] -8- dimethyl - 5,6,7,8 naphthane -5- ketone 5. under ultraviolet light cyclization Cheng Xin product, convenient for reaction.
F. substitution reaction
3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa- -6, the 11- dihydro -5H- benzos that will be generated in step E 6. [b] carbazole is 1 by the ratio between amount of substance with chloroethanes:0.5~1:0.8 mixing, is dissolved in tetrahydrofuran, adds in catalyst, It is sufficiently mixed stirring under nitrogen protection, generates 9- ethyl -3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa-s -6,11- Dihydro -5H- benzos [b] carbazole is 7..
G. reduction reaction
It is first 1 by volume by hydroiodic acid and ethyl alcohol:1~1:1.5, in being mixed in container, secondly add in step F 9- ethyls -3- nitro -6,6- dimethyl -8- methoxyl groups -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole of middle generation 7., It is stirred continuously, reacts at room temperature 2~4 hours, generation reduction reaction, generation 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyls - 11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 8..
H. cyanation
First by 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyl -11- oxa-s -6, the 11- dihydro generated in step G - 5H- benzos [b] carbazole 8. add in fill organic solvent and hydrochloric acid volume ratio be 1:1.2~1:The reaction of 1.5 mixed liquor is held In device, metallic catalyst is added under water-less environment, is sufficiently mixed stirring, after reacting 12~15 hours, TLC detections are completed, It is secondary that it is cuprous that sodium nitrite and nitrile are added in into reaction vessel by the ratio between amount of substance is 1:1~1:1.2 mixture, the reaction was continued 8~10 hours, cyanation occurs, generates 9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa- -6,11- dihydro -5H- benzos 9., i.e. Ai Li replaces Buddhist nun's intermediate to [b] carbazole -3- formonitrile HCNs.
Compared with prior art, the present invention it has the advantages that:
A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate;The present invention provides one kind with 2- methoxyl group -5- hydroxyls - 7,8 dihydronaphthalene -7- ketone of base -8- dimethyl for starting material through chlorination, oxidation reaction, substitution reaction, alkylated reaction, Ring-closure reaction, substitution reaction, reduction reaction, cyanation obtain 9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa-s -6,11- Dihydro -5H- benzos [b] carbazole -3- formonitrile HCNs, preparation process is succinct, and raw material is easy to get, and synthesis condition is simple, economic and environment-friendly, production Product yield and product purity are high, are advantageously implemented industrialization, reduce manufacturing cost, suitable for producing in enormous quantities, seek newly Anticancer drug Ai Li is meaningful for the economic technology of Buddhist nun for Ai Li for the preparation method of Buddhist nun's intermediate.
Specific embodiment
Present invention is further elaborated in following combination specific embodiment.
Embodiment 1
A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate, comprises the following steps that:
A. chlorination
In 500ml reaction vessels, by 2- methoxyl group -5- hydroxyl -8- dimethyl -7,8 dihydronaphthalene -7- ketone 1. (11g, It 0.25mol) is added in the mixed liquor of trifluoromethanesulfanhydride anhydride 40ml, phosphorus oxychloride 40ml, water 90ml, adds in chlorinating agent chloric acid Acid anhydride is stirred well to reaction and terminates, and it is 9 to be adjusted to pH value with sodium hydroxide, finally filters, is dry, obtaining 2- methoxyl group -5- hydroxyls Chloro- 8- dimethyl -7,8 dihydronaphthalene of 7- is 2. (9.02g, 0.82mol).
B. oxidation reaction
90% sulfuric acid 35ml is dissolved in water 65ml first, oxidant sodium dichromate is added in, secondly adds in N, N- dimethyl The mixed liquor of formamide (DMF) 35ml and water 40ml, stirs evenly, heating water bath is eventually adding in step A and obtains to 100 DEG C Chloro- 8- dimethyl -7,8 dihydronaphthalene of 2- methoxyl group -5- hydroxyls 7- 2. (9.02g, 0.82mol), be stirred continuously, react 10 hours To terminating, cool down, filter, dry, obtain the chloro- 8- dimethyl -5,6 of 2- methoxyl groups -7-, 7,8 naphthane -5- ketone 3. (8.39g, 1.28mol)。
C. substitution reaction
The chloro- 8- dimethyl -5,6 of 2- methoxyl groups -7- that Sodamide (3.82g, 0.67mol) and step B are obtained, 7,8 four 3. hydrogen naphthalene -5- ketone is added to after (8.39g, 1.28mol) is mixed in reaction vessel, then add in liquefied ammonia 55ml, be stirred at room temperature 1.5 Hour, TLC detections terminate, and reaction solution is poured into ice water and is filtered, 2- methoxyl group -7- amino -8- two is obtained by filtration cakes torrefaction Methyl -5,6,7,8 naphthane -5- ketone are 4. (6.88g, 2.61mol).
D. alkylated reaction
Sodium hydroxide (10g, 0.28mol) is dissolved in water 40ml, the mixed liquor of triethylamine 20ml and water 40ml is added in, stirs 2- methoxyl group -7- amino -8- the diformazans that alkylating reagent 3- bromo nitrobenzenes (2.94g, 1.6mol) are obtained with step C are added in after mixing Base -5,6, the mixture of 7,8 naphthane -5- ketone 4. (6.88g, 2.61mol), is sufficiently mixed stirring, in 82 under nitrogen protection Alkylated reaction occurs at DEG C, generates N-2- methoxyl groups -7- [(3- nitrobenzophenones) amino] -8- dimethyl -5,6,7,8 tetrahydrochysenes Naphthalene -5- ketone is 5. (8.01g, 3.38mol).
E. ring-closure reaction
By -5,6,7,8 tetrahydrochysene of the N-2- methoxyl groups -7- generated in step D [(3- nitrobenzophenones) amino] -8- dimethyl 5. (8.01g, 3.38mol) addition fills N-Methyl pyrrolidone 65ml, the mixed liquor with water 100ml to naphthalene -5- ketone, adds in cyclization Agent benzoyl peroxide, is sufficiently stirred, through ultraviolet light-initiated ring-closure reaction generation 3- nitro -6,6- dimethyl -8- methoxyl groups - 11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 6. (6.57g, 2.86mol).
F. substitution reaction
3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa- -6, the 11- dihydro -5H- benzos that will be generated in step E 6. (6.57g, 2.86mol) is mixed [b] carbazole with chloroethanes (4.09g, 3.52mol), is dissolved in 110ml in tetrahydrofuran, is added in Catalyst alchlor is sufficiently mixed stirring under nitrogen protection, generates 9- ethyl -3- nitro -6,6- dimethyl -8- methoxies Base -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 7. (8.5g, 2.7mol).
G. reduction reaction
First by hydroiodic acid 80ml and ethyl alcohol 102ml in being mixed in container, the 9- second generated in step F is secondly added in Base -3- nitro -6,6- dimethyl -8- methoxyl groups -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole 7. (8.5g, 2.7mol), it is stirred continuously, reacts at room temperature 2 hours, reduction reaction occurs, generate 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyls Base -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 8. (6.97g, 4.1mol).
H. cyanation
First by 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyl -11- oxa-s -6, the 11- dihydro generated in step G - 5H- benzos [b] carbazole 8. (6.97g, 4.1mol) addition fill ethyl alcohol 80ml, hydrochloric acid 90ml mixed liquor reaction vessel in, Metallic catalyst iron is added under water-less environment, is sufficiently mixed stirring, after reacting 12 hours, TLC detections are completed, secondly to reaction The mixture of sodium nitrite (2.2g, 2.52mol) and nitrile cuprous (4.0g, 1.3mol) is added in container, the reaction was continued 8 hours, Cyanation, generation 9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa- -6,11- dihydro -5H- benzo [b] carbazoles -3- occurs Formonitrile HCN is 9. (5.72g, 3.8mol).
Embodiment 2
A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate, comprises the following steps that:
A. chlorination
In 500ml reaction vessels, by 2- methoxyl group -5- hydroxyl -8- dimethyl -7,8 dihydronaphthalene -7- ketone 1. (26g, It 0.631mol) is added in the mixed liquor of trifluoromethanesulfanhydride anhydride 80ml, phosphorus oxychloride 80ml, water 88ml, adds in chlorinating agent chloric acid Acid anhydride is stirred well to reaction and terminates, and it is 9.5 to be adjusted to pH value with sodium hydroxide, finally filters, is dry, obtaining 2- methoxyl group -5- hydroxyls Chloro- 8- dimethyl -7,8 dihydronaphthalene of base 7- is 2. (20.89g, 1.64mol).
B. oxidation reaction
90% sulfuric acid 60ml is dissolved in water 60ml first, oxidant sodium dichromate is added in, secondly adds in N, N- dimethyl The mixed liquor of formamide (DMF) 50ml and water 63ml, stirs evenly, heating water bath is eventually adding in step A and obtains to 100 DEG C Chloro- 8- dimethyl -7,8 dihydronaphthalene of 2- methoxyl group -5- hydroxyls 7- 2. (20.89g, 1.64mol), be stirred continuously, reaction is 11 small Up to end, cooling, filtering, drying obtain the chloro- 8- dimethyl -5,6 of 2- methoxyl groups -7-, 7,8 naphthane -5- ketone are 3. (17.01g, 2.26mol).
C. substitution reaction
The chloro- 8- dimethyl -5,6 of 2- methoxyl groups -7- that Sodamide (4.22g, 0.58mol) and step B are obtained, 7,8 four 3. hydrogen naphthalene -5- ketone is added to after (17.01g, 2.26mol) is mixed in reaction vessel, then add in liquefied ammonia 80ml, be stirred at room temperature 3 Hour, TLC detections terminate, and reaction solution is poured into ice water and is filtered, 2- methoxyl group -7- amino -8- two is obtained by filtration cakes torrefaction Methyl -5,6,7,8 naphthane -5- ketone are 4. (13.6g, 2.34mol).
D. alkylated reaction
Sodium hydroxide (17.8g, 0.5mol) is dissolved in water 50ml, adds in the mixed liquor of triethylamine 40ml and water 52ml, 2- methoxyl group -7- amino-the 8- that alkylating reagent 3- bromo nitrobenzenes (6.45g, 1.63mol) are obtained with step C is added in after stirring Dimethyl -5,6, the mixture of 7,8 naphthane -5- ketone 4. (13.6g, 2.34mol), is sufficiently mixed stirring under nitrogen protection, Occur alkylated reaction at 90 DEG C, generate N-2- methoxyl groups -7- [(3- nitrobenzophenones) amino] -8- dimethyl -5,6,7,8 four Hydrogen naphthalene -5- ketone is 5. (16.44g, 4.59mol).
E. ring-closure reaction
By -5,6,7,8 tetrahydrochysene of the N-2- methoxyl groups -7- generated in step D [(3- nitrobenzophenones) amino] -8- dimethyl 5. (16.44g, 4.59mol) addition fills N-Methyl pyrrolidone 80ml, the mixed liquor with water 120ml to naphthalene -5- ketone, adds in ring Mixture benzoyl peroxide, is sufficiently stirred, through ultraviolet light-initiated ring-closure reaction generation 3- nitro -6,6- dimethyl -8- methoxyl groups - 11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 6. (13.39g, 3.38mol).
F. substitution reaction
3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa- -6, the 11- dihydro -5H- benzos that will be generated in step E 6. (13.39g, 3.38mol) is mixed [b] carbazole with chloroethanes (8.3g, 4.08mol), is dissolved in 130ml in tetrahydrofuran, is added in Catalyst alchlor is sufficiently mixed stirring under nitrogen protection, generates 9- ethyl -3- nitro -6,6- dimethyl -8- methoxies Base -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 7. (17.78g, 3.6mol).
G. reduction reaction
First by hydroiodic acid 110ml and ethyl alcohol 110ml in being mixed in container, the 9- generated in step F is secondly added in Ethyl -3- nitro -6,6- dimethyl -8- methoxyl groups -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole 7. (17.78g, 3.6mol), it is stirred continuously, reacts at room temperature 3 hours, reduction reaction occurs, generate 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyls Base -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole is 8. (14.6g, 7.5mol).
H. cyanation
First by 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyl -11- oxa-s -6, the 11- dihydro generated in step G - 5H- benzos [b] carbazole 8. (14.6g, 7.5mol) addition fill ethyl alcohol 90ml, hydrochloric acid 110ml mixed liquor reaction vessel in, Metallic catalyst iron is added under water-less environment, is sufficiently mixed stirring, after reacting 13.5 hours, TLC detections are completed, secondly to anti- The mixture that sodium nitrite (3.3g, 0.85mol) and nitrile cuprous (3.1g, 0.57mol) are added in container is answered, it is 9 small that the reaction was continued When, cyanation occurs, generates 9- ethyl -6,6- dimethyl -8- hydroxyls -11- oxa-s -6,11- dihydro -5H- benzos [b] click Azoles -3- formonitrile HCNs are 9. (11.97g, 6.1mol).
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of from which, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended right It is required that rather than above description limit, it is intended that all changes that will be fallen within the meaning and scope of the equivalent requirements of the claims Change is included within the present invention.Any label in claim should not be considered as to the involved claim of limitation.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Claims (7)

1. a kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate, the anticancer drug Ai Li replaces Buddhist nun's intermediated chemistry title For 9- ethyl -6,6- dimethyl -8- hydroxyls -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole -3- formonitrile HCNs, structural formula For:
,
It is characterized in that:The anticancer drug Ai Li is made to comprise the following steps that for the preparation method of Buddhist nun's intermediate:
A. chlorination
1. -7,8 dihydronaphthalene -7- ketone of 2- methoxyl group -5- hydroxyl -8- dimethyl is added to the volume ratio of organic solvent and water first It is 1:1.1~1:In 1.5 mixed liquor, chlorinating agent is secondly added in, reaction is stirred well to and terminates, pH value is adjusted to sodium hydroxide It is 9~10, finally filters, is dry, obtaining chloro- 8- dimethyl -7,8 dihydronaphthalene of 2- methoxyl group -5- hydroxyls 7- 2.;
B. oxidation reaction
Acid solution is prepared by acid is soluble in water first, adds in oxidant, the volume ratio for secondly adding in organic solvent and water is 1:1.2 ~1:1.6 mixed liquor, stirs evenly, and heating water bath is eventually adding the 2- methoxyl group -5- hydroxyls obtained in step A to 100 DEG C 2. chloro- 8- dimethyl -7,8 dihydronaphthalene of 7-, is stirred continuously, reaction a period of time is cooled down, filtered, dried, obtain 2- first to terminating Chloro- -5,6,7,8 naphthane -5- ketone of 8- dimethyl of oxygroup -7- is 3.;
C. substitution reaction
Chloro- -5,6,7,8 naphthane -5- ketone of 8- dimethyl of 2- methoxyl groups -7- that Sodamide and step B are obtained is 3. by substance The ratio between amount is 1:1~1:It is added in reaction vessel after 1.3 mixing, then adds in 40~80ml of liquefied ammonia, it is small to be stirred at room temperature 1~3 When, TLC detections terminate, and reaction solution is poured into ice water and is filtered, 2- methoxyl group -7- amino -8- diformazans are obtained by filtration cakes torrefaction - 5,6,7,8 naphthane -5- ketone of base is 4.;
D. alkylated reaction
Aqueous slkali is prepared by alkali is soluble in water, and the volume ratio for adding in organic solvent and water is 1:1.5~1:2.5 mixed liquor, is stirred - 5,6,7,8 naphthane -5- ketone of 2- methoxyl group -7- amino -8- dimethyl that addition alkylating reagent is obtained with step C after mixing is 4. The ratio between amount by substance is 1:1.4~1:1.7 mixture is sufficiently mixed stirring under nitrogen protection, is issued in 80~90 DEG C Raw alkylated reaction, generates N-2- methoxyl groups -7- [(3- nitrobenzophenones) amino] -8- dimethyl -5,6,7,8 naphthane -5- ketone ⑤;
E. ring-closure reaction
By -5,6,7,8 naphthane -5- of the N-2- methoxyl groups -7- generated in step D [(3- nitrobenzophenones) amino] -8- dimethyl Ketone 5. add in fill organic solvent and water volume ratio be 1:1.5~1:In the reaction vessel of 2 mixed liquor, cyclizing agent is added in, It is sufficiently stirred, through ultraviolet light-initiated ring-closure reaction generation 3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa-s -6,11- bis- Hydrogen -5H- benzos [b] carbazole is 6.;
F. substitution reaction
3- nitro -6,6- dimethyl -8- methoxyl groups -11- oxa-s -6,11- dihydro -5H- benzos [b] click that will be generated in step E 6. azoles is 1 by the ratio between amount of substance with chloroethanes:0.5~1:0.8 mixing, is dissolved in tetrahydrofuran, catalyst is added in, in nitrogen It is sufficiently mixed stirring under protection, generation 9- ethyl -3- nitro -6,6- dimethyl -8- methoxyl group -11- oxa-s -6,11- dihydro - 5H- benzos [b] carbazole is 7.;
G. reduction reaction
It is first 1 by volume by hydroiodic acid and ethyl alcohol:1~1:1.5 in container in being mixed, and secondly adds in raw in step F Into 9- ethyls -3- nitro -6,6- dimethyl -8- methoxyl groups -11- oxa-s -6,11- dihydro -5H- benzos [b] carbazole 7., constantly Stirring reacts at room temperature 2~4 hours, and reduction reaction occurs, and generates 9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyl -11- oxygen Miscellaneous -6,11- dihydro -5H- benzos [b] carbazole is 8.;
H. cyanation
9- ethyl -3- nitro -6,6- dimethyl -8- hydroxyl -11- oxa- -6, the 11- dihydros -5H- that will be generated in step G first Benzo [b] carbazole 8. add in fill organic solvent and hydrochloric acid volume ratio be 1:1.2~1:The reaction vessel of 1.5 mixed liquor It is interior, metallic catalyst is added under water-less environment, is sufficiently mixed stirring, after reacting 12~15 hours, TLC detections are completed, secondly It by the ratio between amount of substance is 1 that it is cuprous that sodium nitrite and nitrile are added in into reaction vessel:1~1:1.2 mixture, the reaction was continued 8 ~10 hours, cyanation, generation occurs
9- ethyl -6,6- dimethyl -8- hydroxyl -11- oxa- -6,11- dihydro -5H- benzos [b] carbazole -3- formonitrile HCNs 9., i.e. Ai Li For Buddhist nun's intermediate.
2. anticancer drug Ai Li according to claim 1 replaces the preparation method of Buddhist nun's intermediate, it is characterised in that:In the A Organic solvent be the ratio between trifluoromethanesulfanhydride anhydride and phosphorus oxychloride volume be 1:1 mixed liquor, the chlorinating agent are chloric acid acid anhydride.
3. anticancer drug Ai Li according to claim 1 replaces the preparation method of Buddhist nun's intermediate, it is characterised in that:The step The sulfuric acid that acid in B is 90%, the oxidant are sodium dichromate or potassium bichromate, and the organic solvent is acetonitrile, N, N- diformazans Base formamide(DMF), toluene, Isosorbide-5-Nitrae dioxane or tetrahydrofuran, the reaction time is 10~12 hours.
4. anticancer drug Ai Li according to claim 1 replaces the preparation method of Buddhist nun's intermediate, it is characterised in that:The step Alkali in D is sodium hydroxide, potassium hydroxide or lithium hydroxide, the organic solvent is triethylamine, pyridine, N- methylmorpholines or Diisopropylethylamine, the alkylating reagent are 3- bromo nitrobenzenes.
5. anticancer drug Ai Li according to claim 1 replaces the preparation method of Buddhist nun's intermediate, it is characterised in that:The step Solvent in E is N-Methyl pyrrolidone or tert-pentyl alcohol, and the cyclizing agent is benzoyl peroxide.
6. anticancer drug Ai Li according to claim 1 replaces the preparation method of Buddhist nun's intermediate, it is characterised in that:The step Catalyst in F is alchlor.
7. anticancer drug Ai Li according to claim 1 replaces the preparation method of Buddhist nun's intermediate, it is characterised in that:The step Organic solvent in H is ethyl alcohol, ether, benzene or oil, and the metallic catalyst is iron or tin.
CN201810051599.XA 2018-01-19 2018-01-19 A kind of anticancer drug Ai Li replaces the preparation method of Buddhist nun's intermediate Withdrawn CN108264476A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020193181A (en) * 2019-05-30 2020-12-03 東ソー株式会社 Method for producing aromatic nitrile compound
US11014919B2 (en) 2018-12-07 2021-05-25 Fresenius Kabi Ipsum S.R.L. Process for the preparation of alectinib
US11098037B2 (en) 2017-07-05 2021-08-24 Fresenius Kabi Oncology Ltd. Process for preparing alectinib or a pharmaceutically acceptable salt thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11098037B2 (en) 2017-07-05 2021-08-24 Fresenius Kabi Oncology Ltd. Process for preparing alectinib or a pharmaceutically acceptable salt thereof
US11465999B2 (en) 2017-07-05 2022-10-11 Fresenius Kabi Oncology Ltd. Process for preparing Alectinib or a pharmaceutically acceptable salt thereof
US11014919B2 (en) 2018-12-07 2021-05-25 Fresenius Kabi Ipsum S.R.L. Process for the preparation of alectinib
JP2020193181A (en) * 2019-05-30 2020-12-03 東ソー株式会社 Method for producing aromatic nitrile compound

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