CN111039951A - Preparation method of darunavir - Google Patents

Preparation method of darunavir Download PDF

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Publication number
CN111039951A
CN111039951A CN201911295964.2A CN201911295964A CN111039951A CN 111039951 A CN111039951 A CN 111039951A CN 201911295964 A CN201911295964 A CN 201911295964A CN 111039951 A CN111039951 A CN 111039951A
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China
Prior art keywords
content
parts
stirring
darunavir
mixed solvent
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CN201911295964.2A
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Chinese (zh)
Inventor
徐军
蒋信义
周宇
张敏华
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ABA CHEMICALS (SHANGHAI) Ltd
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ABA CHEMICALS (SHANGHAI) Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04Ortho-condensed systems

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
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Abstract

The invention relates to the technical field of medicine preparation and application, and discloses a preparation method of darunavir, which comprises the following steps: 1) 2), 3), 4), 5), 6). The preparation method of the darunavir comprises the steps of selecting N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent weight of methyl hamine, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal alkali, hydroxyl compound, aluminum oxide, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution, and preparing the darunavir according to the steps 1) to 4) to obtain fine powder.

Description

Preparation method of darunavir
Technical Field
The invention relates to the technical field of medicine preparation and application, in particular to a preparation method of darunavir.
Background
Darunavir is a chemical substance with the chemical formula of C27H37N3O7S, is a non-peptide HIV protease inhibitor, acts by blocking the formation process of releasing new or mature virus particles from the surface of infected host cells and inhibiting the protease of the virus, and when the darunavir is used for a long time, can generally reduce HIV viral vectors in blood, increase the count of CD4 cells, reduce the chance of infecting AIDS, improve the quality of life and prolong life, and is suitable for adults infected with AIDS virus but who have no curative effect when taking the existing antiretroviral drugs.
The application of darunavir is common at present, the preparation process of the medicament is also disclosed and is fully applied, but the preparation efficiency of the preparation method of darunavir is lower at present, so that the preparation cost is higher, and meanwhile, the preparation process of darunavir has higher requirements on the preparation environment, so that the price of prepared darunavir is higher, and further the popularization of darunavir is more troublesome, and therefore, the preparation method of darunavir is provided to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of darunavir, which has the advantages of simple preparation, low cost and the like, and solves the problems of high price and difficult popularization of darunavir due to low preparation efficiency and high requirement on preparation environment in the preparation process of darunavir.
(II) technical scheme
In order to realize the purposes of simple preparation and low cost, the invention provides the following technical scheme: a preparation method of darunavir comprises the following raw materials: N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hydrogen carbonate, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal base, hydroxyl compound, alumina, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution.
A preparation method of darunavir comprises the following steps:
1) taking out N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hydrogen carbonate, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal alkali, hydroxyl compound, alumina, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution for later use, wherein the storage temperature is indoor temperature, and the interval is 20-25 ℃;
2) placing the ferric nitrite solution, the tetrahydrofuran solvent and the ethanol solution prepared in the step 1) into a reaction container, stirring, wherein the stirring rotation speed is 200-350 rpm, the stirring duration is 10-15 min, obtaining a mixed solvent A after stirring, and placing the mixed solvent A for later use;
3) taking out the mixed solvent A prepared in the step 2), placing the mixed solvent A into a reaction container, pouring N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalents of methyl hamine, cobalt, ferrous oxide, zinc, metal alkali, aluminum oxide, silicon dioxide and butyl lithium into the mixed solvent A, stirring, wherein the stirring rotation speed is 150-200 rpm, the stirring duration is 20-23 min, heating is carried out after stirring, the heating temperature is 40-45 ℃, the heating duration is 2-4 h, and obtaining a mixed solvent B after heating;
4) taking out the mixed solvent B prepared in the step 3), placing the mixed solvent B into a reaction container, taking out the halogenated aromatic ring, triethylamine and the hydroxyl compound, pouring the mixture into the mixed solvent B, stirring, wherein the stirring rotation speed is 150-200 rpm, the stirring duration is 20-23 min, heating is carried out after the stirring is finished, the heating temperature is 40-45 ℃, and the heating duration is 1-2 h, so as to obtain a mixed solvent C;
5) taking out the mixed solvent C prepared in the step 4), placing the mixed solvent C in a drying device for heating and drying, wherein the drying temperature of the drying device is 400 ℃, the duration of the drying treatment is 5 hours, obtaining a powder mixture A with the shape of mixed granular powder after the drying is finished, and placing the powder mixture A for later use;
6) sieving the powder mixture A prepared in the step 5) through a filtering device to remove impurities with larger particle sizes in the powder mixture A, wherein the filtering process lasts for three times, and obtaining a powder mixture B with a fine powder shape after filtering is finished, wherein the powder mixture B is the required darunavir.
Preferably, the content of each of the following raw materials in the step 1) is: the content of N-dibenzyl-L-phenylalanine methyl ester is 15-30 parts, the content of 1.2 equivalent weight of methyl hamine is 10-15 parts, the content of halogenated aromatic ring is 30-50 parts, the content of triethylamine is 10-20 parts, the content of cobalt is 18-25 parts, the content of ferrous oxide is 12-18 parts, the content of zinc oxide is 12-15 parts, the content of zinc is 15-18 parts, the content of ferric nitrite solution is 100-120 parts, the content of metal alkali is 25-28 parts, the content of hydroxyl compound is 60-70 parts, the content of aluminum oxide is 50-70 parts, the content of silicon dioxide is 5-10 parts, the content of butyl lithium is 90-100 parts, the content of tetrahydrofuran solvent is 80-100 parts, and the content of ethanol solution is 90-100 parts.
Preferably, the reaction vessels in step 2), step 3) and step 4) are all cylindrical vessels, and the vessels are equipped with a stirring structure and a heating structure.
Preferably, the filtering screen for sieving the powder mixture B in the step 6) is 1200 meshes, and the preservation temperature of the darunavir in the step 6) is 20 ℃ to 25 ℃.
(III) advantageous effects
Compared with the prior art, the invention provides a preparation method of darunavir, which has the following beneficial effects:
1. the preparation method of the darunavir comprises the steps of selecting N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hamine, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal alkali, hydroxyl compounds, aluminum oxide, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution, and preparing the darunavir according to the steps 1) to 4) to obtain fine powder.
2. According to the preparation method of darunavir, the filtering screen used for sieving the powder mixture B in the step 6) is used for high-precision sieving with 1200 meshes, so that impurities can be fully filtered, the preservation temperature of darunavir prepared in the step 6) can be normal temperature of 20-25 ℃, the situations that the preparation quality is poor and the medicine is difficult to preserve due to excessive impurities in the preparation process of darunavir can be effectively avoided, the reaction containers used in the steps 2), 3) and 4) are cylindrical containers provided with stirring structures and heating structures, the convenience of the preparation method for darunavir can be effectively enhanced, and the problems that the darunavir is high in price and difficult to popularize due to low preparation efficiency and high requirements on the preparation environment in the preparation process of darunavir are effectively solved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A preparation method of darunavir comprises the following raw materials: N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hydrogen carbonate, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal base, hydroxyl compound, alumina, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution.
A preparation method of darunavir comprises the following steps:
1) taking out N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hydrogen carbonate, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal alkali, hydroxyl compound, alumina, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution for later use, wherein the storage temperature is indoor temperature, the interval is 20-25 ℃, and the contents of the following raw materials in the step 1) are respectively: the content of N-dibenzyl-L-phenylalanine methyl ester is 15-30 parts, the content of 1.2 equivalent weight of methyl hamine is 10-15 parts, the content of halogenated aromatic ring is 30-50 parts, the content of triethylamine is 10-20 parts, the content of cobalt is 18-25 parts, the content of ferrous oxide is 12-18 parts, the content of zinc oxide is 12-15 parts, the content of zinc is 15-18 parts, the content of ferric nitrite solution is 100-120 parts, the content of metal alkali is 25-28 parts, the content of hydroxyl compound is 60-70 parts, the content of aluminum oxide is 50-70 parts, the content of silicon dioxide is 5-10 parts, the content of butyl lithium is 90-100 parts, the content of tetrahydrofuran solvent is 80-100 parts, and the content of ethanol solution is 90-100 parts;
2) placing the ferric nitrite solution, the tetrahydrofuran solvent and the ethanol solution prepared in the step 1) into a reaction container, stirring, wherein the stirring rotation speed is 200-350 rpm, the stirring duration is 10-15 min, obtaining a mixed solvent A after stirring, and placing the mixed solvent A for later use;
3) taking out the mixed solvent A prepared in the step 2), placing the mixed solvent A into a reaction container, pouring N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalents of methyl hamine, cobalt, ferrous oxide, zinc, metal alkali, aluminum oxide, silicon dioxide and butyl lithium into the mixed solvent A, stirring, wherein the stirring rotation speed is 150-200 rpm, the stirring duration is 20-23 min, heating is carried out after stirring, the heating temperature is 40-45 ℃, the heating duration is 2-4 h, and obtaining a mixed solvent B after heating;
4) taking out the mixed solvent B prepared in the step 3), placing the mixed solvent B into a reaction vessel, taking out the halogenated aromatic ring, triethylamine and a hydroxyl compound, pouring the mixture into the mixed solvent B, stirring, wherein the stirring rotation speed is 150-200 rpm, the stirring duration is 20-23 min, heating is carried out after the stirring is finished, the heating temperature is 40-45 ℃, the heating duration is 1-2 h, and then obtaining a mixed solvent C, wherein the reaction vessels in the step 2), the step 3) and the step 4) are cylindrical vessels which are provided with a stirring structure and a heating structure;
5) taking out the mixed solvent C prepared in the step 4), placing the mixed solvent C in a drying device for heating and drying, wherein the drying temperature of the drying device is 400 ℃, the duration of the drying treatment is 5 hours, obtaining a powder mixture A with the shape of mixed granular powder after the drying is finished, and placing the powder mixture A for later use;
6) sieving the powder mixture A prepared in the step 5) through a filtering device to remove impurities with larger particle sizes in the powder mixture A, wherein the filtering process lasts for three times, and obtaining a powder mixture B with a fine powder shape after filtering, wherein the powder mixture B is the required darunavir, a filtering screen for sieving the powder mixture B in the step 6) is 1200 meshes, and the preservation temperature of the darunavir in the step 6) is 20-25 ℃.
The invention has the beneficial effects that: the preparation method of the darunavir comprises the steps of selecting N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hamine, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal alkali, hydroxyl compound, aluminum oxide, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution, and preparing according to the steps 1) to 4) to obtain the darunavir in fine powder form, wherein the whole process of the preparation method is very simple and efficient, the effect of simple preparation is achieved, devices used for preparing the darunavir by using the preparation method are a reaction container, a drying device and a filter layer device, and the preparation process is carried out at normal temperature, so that the preparation method has low requirement on preparation environment and is convenient to popularize and use, and the preparation method of the darunavir, the filtering screen for sieving the powder mixture B in the step 6) is used for high-precision sieving of 1200 meshes, so that impurities can be fully filtered, the preservation temperature of the prepared darunavir in the step 6) is 20-25 ℃, the conditions that the preparation quality is poor and the medicine is difficult to preserve due to excessive impurities in the preparation of the darunavir can be effectively avoided, the reaction container used in the steps 2), 3) and 4) is a cylindrical container provided with a stirring structure and a heating structure, the convenience of the preparation method for the darunavir can be effectively enhanced, and the problems that the darunavir is high in price and difficult to popularize due to low preparation efficiency and high requirements on the preparation environment in the preparation process of the darunavir can be effectively solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The preparation method of darunavir is characterized by comprising the following raw materials: N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hydrogen carbonate, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal base, hydroxyl compound, alumina, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution.
2. A preparation method of darunavir is characterized by comprising the following steps:
1) taking out N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalent of methyl hydrogen carbonate, halogenated aromatic rings, triethylamine, cobalt, ferrous oxide, zinc, ferric nitrite solution, metal alkali, hydroxyl compound, alumina, silicon dioxide, butyl lithium, tetrahydrofuran solvent and ethanol solution for later use, wherein the storage temperature is indoor temperature, and the interval is 20-25 ℃;
2) placing the ferric nitrite solution, the tetrahydrofuran solvent and the ethanol solution prepared in the step 1) into a reaction container, stirring, wherein the stirring rotation speed is 200-350 rpm, the stirring duration is 10-15 min, obtaining a mixed solvent A after stirring, and placing the mixed solvent A for later use;
3) taking out the mixed solvent A prepared in the step 2), placing the mixed solvent A into a reaction container, pouring N-dibenzyl-L-phenylalanine methyl ester, 1.2 equivalents of methyl hamine, cobalt, ferrous oxide, zinc, metal alkali, aluminum oxide, silicon dioxide and butyl lithium into the mixed solvent A, stirring, wherein the stirring rotation speed is 150-200 rpm, the stirring duration is 20-23 min, heating is carried out after stirring, the heating temperature is 40-45 ℃, the heating duration is 2-4 h, and obtaining a mixed solvent B after heating;
4) taking out the mixed solvent B prepared in the step 3), placing the mixed solvent B into a reaction container, taking out the halogenated aromatic ring, triethylamine and the hydroxyl compound, pouring the mixture into the mixed solvent B, stirring, wherein the stirring rotation speed is 150-200 rpm, the stirring duration is 20-23 min, heating is carried out after the stirring is finished, the heating temperature is 40-45 ℃, and the heating duration is 1-2 h, so as to obtain a mixed solvent C;
5) taking out the mixed solvent C prepared in the step 4), placing the mixed solvent C in a drying device for heating and drying, wherein the drying temperature of the drying device is 400 ℃, the duration of the drying treatment is 5 hours, obtaining a powder mixture A with the shape of mixed granular powder after the drying is finished, and placing the powder mixture A for later use;
6) sieving the powder mixture A prepared in the step 5) through a filtering device to remove impurities with larger particle sizes in the powder mixture A, wherein the filtering process lasts for three times, and obtaining a powder mixture B with a fine powder shape after filtering is finished, wherein the powder mixture B is the required darunavir.
3. The process for the preparation of darunavir according to claim 2, characterized by comprising: the content of each raw material in the step 1) is as follows: the content of N-dibenzyl-L-phenylalanine methyl ester is 15-30 parts, the content of 1.2 equivalent weight of methyl hamine is 10-15 parts, the content of halogenated aromatic ring is 30-50 parts, the content of triethylamine is 10-20 parts, the content of cobalt is 18-25 parts, the content of ferrous oxide is 12-18 parts, the content of zinc oxide is 12-15 parts, the content of zinc is 15-18 parts, the content of ferric nitrite solution is 100-120 parts, the content of metal alkali is 25-28 parts, the content of hydroxyl compound is 60-70 parts, the content of aluminum oxide is 50-70 parts, the content of silicon dioxide is 5-10 parts, the content of butyl lithium is 90-100 parts, the content of tetrahydrofuran solvent is 80-100 parts, and the content of ethanol solution is 90-100 parts.
4. The process for the preparation of darunavir according to claim 2, characterized by comprising: the reaction vessels in the step 2), the step 3) and the step 4) are all cylindrical vessels, and the vessels are provided with a stirring structure and a heating structure.
5. The process for the preparation of darunavir according to claim 2, characterized by comprising: the filtering screen for sieving the powder mixture B in the step 6) is 1200 meshes, and the preservation temperature of the darunavir in the step 6) is 20-25 ℃.
CN201911295964.2A 2019-12-16 2019-12-16 Preparation method of darunavir Pending CN111039951A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120251826A1 (en) * 2009-09-17 2012-10-04 Siva Rama Prasad Vellanki Process for the preparation of darunavir
CN108822123A (en) * 2018-09-06 2018-11-16 南通雅本化学有限公司 A kind of preparation method of darunavir
CN110698492A (en) * 2019-09-05 2020-01-17 雅本化学股份有限公司 Preparation method of darunavir

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120251826A1 (en) * 2009-09-17 2012-10-04 Siva Rama Prasad Vellanki Process for the preparation of darunavir
CN108822123A (en) * 2018-09-06 2018-11-16 南通雅本化学有限公司 A kind of preparation method of darunavir
CN110698492A (en) * 2019-09-05 2020-01-17 雅本化学股份有限公司 Preparation method of darunavir

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘鸿 等: "达芦那韦合成路线图解", 《中国药物化学杂志》, vol. 23, no. 1, pages 72 - 74 *
庞永毅 等: "HIV蛋白酶抑制剂Darunavir的合成研究进展", 《山东化工》, vol. 46, no. 9, pages 38 - 43 *

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Application publication date: 20200421