CN105153258A - Preparation method for 3-beta-hydroxyandrost-17-one - Google Patents

Preparation method for 3-beta-hydroxyandrost-17-one Download PDF

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CN105153258A
CN105153258A CN201510463987.5A CN201510463987A CN105153258A CN 105153258 A CN105153258 A CN 105153258A CN 201510463987 A CN201510463987 A CN 201510463987A CN 105153258 A CN105153258 A CN 105153258A
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acid
organic solvent
androstane
ketone
beta
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CN105153258B (en
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胡爱国
谢来宾
吴来喜
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Hunan Kerey Pharmaceutical Co Ltd
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Abstract

A preparation method for 3-beta-hydroxyandrost-17-one comprises taking 4AD (androstenedione) as a raw material, performing 3-position alkene etherification on 4AD in an organic solvent, employing triethyl orthoformate as a reagent, and performing acid catalysis to prepare an etherification product 3-ethoxyandrost-3,5-diene-17-one; adding the etherification product in an organic solvent, performing palladium/carbon catalytic hydrogenation, so as to obtain an intermediate hydrogenation product 3-ethoxyandrost-17-one; and performing acid catalytic hydrolysis on the hydrogenation product in a low-carbon alcohol or other organic solvents, so as to obtain 3-beta-hydroxyandrost-17-one. The product HPLC content is 99.5% or more, the melting point is 172-176 DEG C, and the synthesis weight overall yield is 75-83%. By using the method to produce 3-beta-hydroxyandrost-17-one, the raw materials are cheap and easy to obtain, the technological operation is convenient, the product overall yield is improved by 15-20%, and the production cost is reduced by 30-40%. The solvent employed in the technology is recoverable and reusable, is economical, friendly to environment and also extremely beneficial for industrialized production.

Description

The preparation method of 3-beta-hydroxy-androstane-17-ketone
Technical field
The invention belongs to the fabricating technology of steroid hormone pharmaceutical intermediate, be specifically related to the preparation method of a kind of 3-beta-hydroxy-androstane-17-ketone.
Background technology
3-beta-hydroxy-androstane-17-ketone is a kind of versatile intermediates producing steroid hormone medicine.With it for raw material, the multiple common class steroid hormone medicine of flaccid muscles such as Zemuron, vecuronium bromide can be produced; Also the multiple common male sex hormone medicine such as mestanolone, Synasteron can be produced.The conventional production methods of 3-beta-hydroxy-androstane-17-ketone; with the diosgenin extracted from Chinese yam plant; through protection, oxicracking, elimination; key intermediate acetic acid gestation diene alcohol ketone (abbreviation diene) obtained is raw material; obtain through oximate, rearrangement, acid hydrolysis, hydrogenation, the reaction of basic hydrolysis five step, its operational path is shown in accompanying drawing 1.The technique such as oximate, rearrangement of the wherein extraction of diosgenin, oxicracking, diene, waste water is more, and not easily processes, easy contaminate environment.The more important thing is, along with wild Chinese yam plant resources is day by day exhausted, and artificial growth Chinese yam plant, also because of the rising day by day of the planting costs such as artificial, chemical fertilizer, cause saponin, the production cost of diene is doubled and redoubled, cause 3-beta-hydroxy-androstane-17-ketone production cost and market value to increase substantially, already great effect was created to the world market of multiple class steroid hormone medicine of flaccid muscles and male sex hormone medicine.Find new synthetic method, steroid hormone medicine and the intermediates thereof such as low cost production 3-beta-hydroxy-androstane-17-ketone, become the industry task of top priority.Once had bibliographical information abroad, the residue utilizing soybean oil to produce extracts Stigmasterol, through modern biotechnology fermentation technique, can obtain another key intermediate 4-AD of synthesizing steroid hormonal medicaments, is called for short 4AD.Most of male sex hormone and protein anabolic hormone medicine can be produced by 4AD.But there are no producing the bibliographical information of 3-beta-hydroxy-androstane-17-ketone with 4AD.
Summary of the invention
The object of this invention is to provide the preparation method of a kind of new 3-beta-hydroxy-androstane-17-ketone, solve in existing Technology many defects such as raw materials for production are expensive, sewage disposal is difficult, complex operation, significantly reduce the production cost of 3-beta-hydroxy-androstane-17-ketone.
Technical scheme of the present invention is: the preparation method of 3-beta-hydroxy-androstane-17-ketone take 4AD as raw material, in organic solvent, by 4AD3 position alkene etherificate, make reagent with triethyl orthoformate, acid catalysis prepares etherate 3-oxyethyl group-androstane-3,5-diene-17-ketone; This etherate in organic solvent, with palladium carbon shortening, obtains intermediate hydrogenation thing 3-oxyethyl group-androstane-17-ketone; By this hydrogenation thing in organic solvent acid-catalyzed hydrolysis obtain 3-beta-hydroxy-androstane-17-ketone.Be kept to three steps by former five-step approach to complete.
Operation steps is as follows:
The method that A, acid catalysis prepare etherate is, by 4AD in organic solvent with triethyl orthoformate under acid catalysis, 20 ~ 50 DEG C of stirring reactions 12 ~ 16 hours, after having reacted, add 0.02W weak base and be neutralized to pH7 ~ 7.5, further aftertreatment, obtain etherate 3-oxyethyl group-androstane-3,5 diene-17-ketone, its HPLC content 98.5% ~ 99.5%, weight yield 100 ~ 102%;
Described organic solvent comprises methylene dichloride, toluene, methyl alcohol, ethanol; Acid catalyst used comprises hydrochloric acid, sulfuric acid, phosphoric acid, or acetic acid, tosic acid, oxalic acid; Neutralize weak base used and comprise inorganic weak bases, organic weak base; Temperature of reaction is 20 ~ 50 DEG C; Weight proportion between reactant, 4AD: triethyl orthoformate: acid is 1:0.5 ~ 1.0:0.01 ~ 0.05, the proportioning 4AD between reactant and solvent: organic solvent is 1W:2 ~ 8V.Wherein W represents g, and V represents ml.
Preferred version, described organic solvent is ethanol; Acid catalyst is tosic acid; Neutralizing weak base used is pyridine; Temperature of reaction 20 ~ 30 DEG C; Weight proportion between reactant is 1:0.8:0.02; Proportioning between reactant and low-carbon alcohol solvent is 1W:2 ~ 2.5V, or 1W:6 ~ 8V.
The preparation of B, intermediate hydrogenation thing, above-mentioned etherate is dissolved in organic solvent, adds palladium carbon, after displaced air, pass into hydrogen, be warming up to 30 ~ 60 DEG C of reactions 8 ~ 16 hours, react rear emptying, while hot press filtration, with solvent wash, filter cake send producer to reclaim, washing lotion and filtrate merge, and elutriation after recovery organic solvent, obtains solid; This solid wet product, directly with alcohol, activated carbon decolorizing recrystallization, obtains hydrogenation thing 3 oxyethyl groups-androstane-3,5-diene-17-ketone, HPLC content more than 99.0%, weight yield 90 ~ 95%;
Organic solvent described above comprises ethyl acetate, tetrahydrofuran (THF), acetic acid, acetone, below C4 low-carbon alcohol; Catalyzer comprises 1 ~ 10% palladium carbon; Temperature of reaction is 30 ~ 60 DEG C; Weight proportion between etherate and 5% palladium carbon is 1:0.05 ~ 0.25; The proportioning of etherate and organic solvent is 1W:4 ~ 10V.
Preferred version, described organic solvent is ethanol, acetic acid; Catalyzer is the palladium carbon of 5%; Temperature of reaction 40 ~ 45 DEG C, the weight proportion of etherate and palladium carbon is 1:0.15; The proportioning of etherate and organic solvent is 1W:8V.
The acidification hydrolization of C, hydrogenation thing, dissolves in organic solvent by above-mentioned hydrogenation thing, adds acid catalyst, be warming up to 60 ~ 100 DEG C, reacts 12 ~ 18 hours, after having reacted, reclaims organic solvent, and cooling elutriation, obtains 3-beta-hydroxy-androstane-17-ketone crude product; By above-mentioned crude product with alcohol, activated carbon decolorizing recrystallization, obtain 3-beta-hydroxy-androstane-17-ketone, fusing point 129-131 degree, content > 99%, yield 80 ~ 85%;
Above-mentioned organic solvent used comprises toluene, formic acid, acetic acid, ethanol, Virahol, the trimethyl carbinol of below C6 80 ~ 140 DEG C of boiling points; Described acid comprises hydrochloric acid, Hydrogen bromide, perchloric acid, sulfuric acid, or trifluoroacetic acid, tosic acid etc.; Temperature of reaction 60 ~ 100 DEG C; Hydrogenation thing is 1:0.6 ~ 1.2 with the weight proportion of acid; The weight proportion of hydrogenation thing and organic solvent is 1W:4 ~ 6V.
Preferred version, described organic solvent is preferably acetic acid or alcohol; Described acid is hydrochloric acid; Temperature of reaction 80 ~ 90 DEG C; Hydrogenation thing is 1:0.8 with the weight proportion of acid; The proportioning of hydrogenation thing and organic solvent is 1W:5V.
The invention has the beneficial effects as follows: adopt manufacture 3-beta-hydroxy of the present invention-androstane-17-ketone, the traditional method of raw material is relatively made with diosgenin, raw material 4AD wide material sources, the economic environmental protection of synthetic route, processing condition are gentle, and production operation is easy, good product quality, total yield of products improves 15 ~ 20%, and production cost is low by 30 ~ 40%.The solvent used in technique, recyclable recycled, both economical, environmental protection again, is extremely beneficial to suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the synthetic route chart of produced in conventional processes 3-beta-hydroxy-androstane-17-ketone.
Fig. 2 is the process route chart that the present invention produces 3 beta-hydroxies-androstane-17-ketone.
Embodiment
In order to main points of the present invention and spirit are described more easily, citing is below explained:
Embodiment one
The preparation of A, etherate
In a 1000ml there-necked flask, add 100g4AD, 200ml ethanol, 80ml triethyl orthoformate, 2g tosic acid, be incubated in 20-25 DEG C of stirring reaction 12 ~ 16 hours, TLC detection reaction terminal, after having reacted, add 3ml pyridine, stir 20-25 minute neutralizing acid, then system is cooled to-5 ~ 0 DEG C, stirred crystallization 2 ~ 3 hours, suction filtration, a small amount of washing with alcohol, washing lotion and filtrate merge, and recycling design and crude product are applied mechanically; Filter cake less than 70 DEG C oven dry, obtains etherate 101.6g, HPLC content 99.2%, weight yield 101.6%.Reaction formula is shown in the first part of accompanying drawing 2.
The preparation of B, hydrogenation thing
In a 1000ml there-necked flask, add 100g etherate, 800ml ethanol, after dissolving, add the palladium carbon of 15g5%, be warming up to 40-45 DEG C of insulated and stirred reaction 15 ~ 16 hours, TLC detection reaction terminal, after having reacted, emptying, nitrogen press filtration while hot, 50ml washing with alcohol, filter cake send producer to reclaim; Washing lotion and filtrate merge, concentrating under reduced pressure, reclaim ethanol and apply mechanically.Add 600ml tap water elutriation residual night, filter, obtain solid.Above-mentioned solid is directly added in 800ml alcohol, heating makes it dissolve, add 5g gac, reflux decolour 1-1.5 hour, filtered while hot, filter cake about 80ml alcohol foam washing, merging filtrate and washing lotion, normal pressure is concentrated into recovery about 85% alcohol, then adds 500ml pure water, continues to steam the solvent of about 150ml containing ethanol 50-60%, again system is cooled to 5 ~ 10 DEG C, stirring and crystallizing 2 ~ 3 hours, filters, and the filter cake ethanolic soln of a small amount of 50% washs, less than 70 DEG C oven dry, obtain hydrogenation thing 94.6g, HPLC content 99.2%, weight total recovery 94.6%.Reaction formula is shown in the middle portion of accompanying drawing 2.
The preparation of C, 3-beta-hydroxy-androstane-17-ketone
In a 1000ml there-necked flask, add 100g hydrogenation thing, 500ml ethanol, under stirring at normal temperature, add 80g30% hydrochloric acid, slowly be warming up to 80-84 DEG C, back flow reaction 12 ~ 16 hours, after having reacted, underpressure distillation, reclaims the ethanol of about 90-95%, then adds 600ml tap water, be cooled to 10 ~ 15 DEG C, stirring and crystallizing 2 ~ 3 hours, filters, is washed to neutrality, filter cake less than 70 DEG C oven dry, obtains 3-beta-hydroxy-androstane-17-ketone crude product.Above-mentioned 3-beta-hydroxy-androstane-17-ketone crude product is dissolved in 600ml alcohol, adds 5g gac, temperature rising reflux decolouring 1-1.5 hour, filtered while hot, 100ml ethanol wash filter cake, washing lotion and filtrate merge, the alcohol of normal pressure concentration and recovery about 90%, is then cooled to-5-0 DEG C, freezing crystallization 2 ~ 3 hours, filter, a small amount of ethanol wash of filter cake, less than 70 DEG C oven dry, obtain 3-beta-hydroxy-androstane-17-ketone 84.2g, fusing point 173.5 ~ 174.0 DEG C, HPLC content 99.7%, yield 84.2%.Disposing mother liquor solvent and crude product are applied mechanically.Reaction formula is shown in the final section of accompanying drawing 2.
Embodiment two
The preparation of A, etherate
In a 1000ml there-necked flask, add 100g4AD, 600ml methylene dichloride, 80ml triethyl orthoformate, 2g tosic acid, be incubated in 20-25 degree stirring reaction 12 ~ 16 hours, TLC detection reaction terminal, after having reacted, add 3ml pyridine, stir 20-25 minute neutralizing acid, concentrating under reduced pressure, reclaim methylene dichloride, cooling, adds 100ml ethanol, then system is cooled to-5-0 DEG C, stirred crystallization 2 ~ 3 hours, suction filtration, a small amount of washing with alcohol, washing lotion and filtrate merge, and recycling design and crude product are applied mechanically; Filter cake less than 70 DEG C oven dry, obtains etherate 100.2g, HPLC content 99.4%, weight yield 100.2%.
The preparation of B, hydrogenation thing
In a 1000ml there-necked flask, add 100g etherate, 800ml Glacial acetic acid, the palladium carbon of 15g5% is added after dissolving, be warming up to 40 ~ 45 DEG C of insulated and stirred reactions 15 ~ 16 hours, TLC detection reaction terminal, after having reacted, emptying, nitrogen press filtration while hot, 50ml Glacial acetic acid washs, and filter cake send producer to reclaim; Washing lotion and filtrate merge, concentrating under reduced pressure, reclaim Glacial acetic acid and apply mechanically.Add 600ml tap water elutriation residual night, filter, obtain solid.Above-mentioned solid is directly added in 800ml alcohol, heating makes it dissolve, add 5g gac, reflux decolour 1 ~ 1.5 hour, filtered while hot, filter cake about 80ml alcohol foam washing, merging filtrate and washing lotion, normal pressure is concentrated into recovery about 85% alcohol, then adds 500ml pure water, continues to steam the solvent of about 150ml containing ethanol 50-60%, again system is cooled to 5-10 DEG C, stirring and crystallizing 2 ~ 3 hours, filters, and the filter cake ethanolic soln of a small amount of 50% washs, less than 70 DEG C oven dry, obtain hydrogenation thing 92.5g, HPLC content 99.3%, weight total recovery 92.5%.
The preparation of C, 3-beta-hydroxy-androstane-17-ketone
In a 1000ml there-necked flask, add 100g hydrogenation thing, 500ml ethanol, under stirring at normal temperature, add 70g40% Hydrogen bromide, slowly be warming up to 80-84 DEG C, back flow reaction 12-16 hour, after having reacted, underpressure distillation, reclaims the ethanol of about 90-95%, then adds 600ml tap water, be cooled to 10 ~ 15 DEG C, stirring and crystallizing 2-3 hour, filters, is washed to neutrality, filter cake less than 70 DEG C oven dry, obtains 3-beta-hydroxy-androstane-17-ketone crude product.Above-mentioned 3-beta-hydroxy-androstane-17-ketone crude product is dissolved in 600ml alcohol, adds 5g gac, temperature rising reflux decolouring 1-1.5 hour, filtered while hot, 100ml ethanol wash filter cake, washing lotion and filtrate merge, the alcohol of normal pressure concentration and recovery about 90%, is then cooled to-5-0 degree, freezing crystallization 2-3 hour, filter, a small amount of ethanol wash of filter cake, less than 70 DEG C oven dry, obtain 3-beta-hydroxy-androstane-17-ketone 84.2g, fusing point 173.0-173.5 DEG C, HPLC content 99.7%, yield 84.2%.Disposing mother liquor solvent and crude product are applied mechanically.
Embodiment three
The preparation of A, etherate
In a 1000ml there-necked flask, add the sulfuric acid of 100g4AD, 200ml ethanol, 80ml triethyl orthoformate, 2g98%, be incubated in 20-25 DEG C of stirring reaction 12 ~ 16 hours, TLC detection reaction terminal, after having reacted, add 3ml pyridine, stir 20-25 minute neutralizing acid, then system is cooled to-5-0 DEG C, stirred crystallization 2 ~ 3 hours, suction filtration, a small amount of washing with alcohol, washing lotion and filtrate merge, and recycling design and crude product are applied mechanically; Filter cake less than 70 DEG C oven dry, obtains etherate 100.8g, HPLC content 99.0%, weight yield 100.8%.
The preparation of B, hydrogenation thing
In a 1000ml there-necked flask, add 100g etherate, 800ml ethyl acetate, the palladium carbon of 15g5% is added after dissolving, be warming up to 40 ~ 45 DEG C of insulated and stirred reactions 15 ~ 16 hours, TLC detection reaction terminal, after having reacted, emptying, nitrogen press filtration while hot, 50ml ethyl acetate is washed, and filter cake send producer to reclaim; Washing lotion and filtrate merge, concentrating under reduced pressure, reclaim ethyl acetate and apply mechanically.Add 600ml tap water elutriation residual night, filter, obtain solid.Above-mentioned solid is directly added in 800ml alcohol, heating makes it dissolve, add 5g gac, reflux decolour 1 ~ 1.5 hour, filtered while hot, filter cake about 80ml alcohol foam washing, merging filtrate and washing lotion, normal pressure is concentrated into recovery about 85% alcohol, then adds 500ml pure water, continues to steam the solvent of about 150ml containing ethanol 50-60%, again system is cooled to 5 ~ 10 DEG C, stirring and crystallizing 2 ~ 3 hours, filters, and the filter cake ethanolic soln of a small amount of 50% washs, less than 70 DEG C oven dry, obtain hydrogenation thing 91.6g, HPLC content 99.3%, weight total recovery 91.6%.
The preparation of C, 3-beta-hydroxy-androstane-17-ketone
In a 1000ml there-necked flask, add 100g hydrogenation thing, 500ml ethanol, under stirring at normal temperature, add 60g50% perchloric acid, slowly be warming up to 80-84 DEG C, back flow reaction 12-16 hour, after having reacted, underpressure distillation, reclaims the ethanol of about 90-95%, then adds 600ml tap water, be cooled to 10 ~ 15 DEG C, stirring and crystallizing 2-3 hour, filters, is washed to neutrality, filter cake less than 70 DEG C oven dry, obtains 3-beta-hydroxy-androstane-17-ketone crude product.Above-mentioned 3-beta-hydroxy-androstane-17-ketone crude product is dissolved in 600ml alcohol, adds 5g gac, temperature rising reflux decolouring 1 ~ 1.5 hour, filtered while hot, 100ml ethanol wash filter cake, washing lotion and filtrate merge, the alcohol of normal pressure concentration and recovery about 90%, is then cooled to-5-0 DEG C, freezing crystallization 2-3 hour, filter, a small amount of ethanol wash of filter cake, less than 70 DEG C oven dry, obtain 3-beta-hydroxy-androstane-17-ketone 84.5g, fusing point 172.5-173.5 DEG C, HPLC content 99.5%, yield 84.5%.Disposing mother liquor solvent and crude product are applied mechanically.
The embodiment of the present invention, for illustration of working method of the present invention, does not limit protection scope of the present invention.The improvement of all impartial effects done according to the present invention, all contain by the present patent application.

Claims (7)

  1. The preparation method of 1.3-beta-hydroxy-androstane-17-ketone, is characterized in that: take 4AD as raw material, in organic solvent, by 4AD3 position alkene etherificate, makes reagent with triethyl orthoformate, and acid catalysis prepares etherate 3-oxyethyl group-androstane-3,5-diene-17-ketone; This etherate in organic solvent, with palladium carbon shortening, obtains intermediate hydrogenation thing 3-oxyethyl group-androstane-17-ketone; By this hydrogenation thing in organic solvent acid-catalyzed hydrolysis obtain 3-beta-hydroxy-androstane-17-ketone.
  2. 2. the preparation method of 3-beta-hydroxy according to claim 1-androstane-17-ketone, it is characterized in that, the method that acid catalysis prepares etherate is, by 4AD in organic solvent, with triethyl orthoformate under acid catalysis, in 20 ~ 50 DEG C of stirring reactions 12 ~ 16 hours, after having reacted, add 0.02W weak base and be neutralized to pH7 ~ 7.5, further aftertreatment, obtain etherate 3-oxyethyl group-androstane-3,5 diene-17-ketone, its HPLC content 98.5% ~ 99.5%, weight yield 100 ~ 102%; Described organic solvent comprises methylene dichloride, toluene, methyl alcohol, ethanol; Acid catalyst used comprises hydrochloric acid, sulfuric acid, phosphoric acid, or acetic acid, tosic acid, oxalic acid; Neutralize weak base used and comprise inorganic weak bases, organic weak base; Temperature of reaction is 20 ~ 50 DEG C; Weight proportion between reactant, 4AD: triethyl orthoformate: acid is 1: 0.5 ~ 1.0: 0.01 ~ 0.05, the proportioning 4AD between reactant and solvent: organic solvent is 1W: 2 ~ 8V, and wherein W represents g, and V represents ml.
  3. 3. the preparation method of 3-beta-hydroxy according to claim 2-androstane-17-ketone, is characterized in that, described organic solvent is ethanol; Acid catalyst is tosic acid; Neutralizing weak base used is pyridine; Temperature of reaction 20 ~ 30 DEG C; Weight proportion between reactant is 1: 0.8: 0.02; Proportioning between reactant and solvent, 4AD: low-carbon alcohol is 1W: 2 ~ 2.5V, or 1W: 6 ~ 8V.
  4. 4. the preparation method of 3-beta-hydroxy according to claim 1-androstane-17-ketone, is characterized in that, the preparation of intermediate hydrogenation thing, above-mentioned etherate is dissolved in organic solvent, adds palladium carbon, after displaced air, pass into hydrogen, be warming up to 30 ~ 60 DEG C of reactions 8 ~ 16 hours, react rear emptying, while hot press filtration, with solvent wash, filter cake send producer to reclaim, washing lotion and filtrate merge, and elutriation after recovery organic solvent, obtains solid; This solid wet product, directly with alcohol, activated carbon decolorizing recrystallization, obtains hydrogenation thing 3 oxyethyl groups-androstane-3,5-diene-17-ketone, HPLC content more than 99.0%, weight yield 90 ~ 95%; Organic solvent described above comprises ethyl acetate, tetrahydrofuran (THF), acetic acid, acetone, below C4 low-carbon alcohol; Catalyzer comprises 1 ~ 10% palladium carbon; Temperature of reaction is 30 ~ 60 DEG C; Weight proportion between etherate and 5% palladium carbon is 1: 0.05 ~ 0.25; The proportioning of etherate and organic solvent is 1W: 4 ~ 10V.
  5. 5. the preparation method of 3-beta-hydroxy according to claim 4-androstane-17-ketone, is characterized in that, described organic solvent is ethanol, acetic acid; Catalyzer is the palladium carbon of 5%; Temperature of reaction 40 ~ 45 DEG C, the weight proportion of etherate and palladium carbon is 1: 0.15; The proportioning of etherate and organic solvent is 1W: 8V.
  6. 6. the preparation method of 3-beta-hydroxy according to claim 1-androstane-17-ketone, it is characterized in that, the acidification hydrolization of hydrogenation thing, dissolves in organic solvent by above-mentioned hydrogenation thing, adds acid catalyst, be warming up to 60 ~ 100 DEG C, react 12 ~ 18 hours, after having reacted, reclaim organic solvent, cooling elutriation, obtains 3-beta-hydroxy-androstane-17-ketone crude product; By above-mentioned crude product with alcohol, activated carbon decolorizing recrystallization, obtain 3-beta-hydroxy-androstane-17-ketone, fusing point 129-131 degree, content > 99%, yield 80-85%;
    Above-mentioned organic solvent used comprises toluene, formic acid, acetic acid, ethanol, Virahol, the trimethyl carbinol of below C6 80 ~ 140 DEG C of boiling points; Described acid comprises hydrochloric acid, Hydrogen bromide, perchloric acid, sulfuric acid, or trifluoroacetic acid, tosic acid etc.; Temperature of reaction 60 ~ 100 DEG C; Hydrogenation thing is 1: 0.6 ~ 1.2 with the weight proportion of acid; The weight proportion of hydrogenation thing and organic solvent is 1W: 4 ~ 6V.
  7. 7. the preparation method of 3-beta-hydroxy according to claim 6-androstane-17-ketone, is characterized in that, described organic solvent is acetic acid or alcohol; Described acid is hydrochloric acid; Temperature of reaction 80 ~ 90 DEG C; Hydrogenation thing is 1: 0.8 with the weight proportion of acid; The proportioning of hydrogenation thing and organic solvent is 1W: 5V.
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CN109627273A (en) * 2018-12-05 2019-04-16 华中药业股份有限公司 A kind of synthetic method of -17 beta-hydroxy -3- ketone of -17 Alpha-Methyl of furazabol intermediate androstane
CN109651473A (en) * 2019-02-18 2019-04-19 湖南科瑞生物制药股份有限公司 A kind of preparation method of androstane -2- alkene -17- ketone
CN110563788A (en) * 2019-09-24 2019-12-13 华中药业股份有限公司 preparation method of 5 alpha-androstane-3, 17-dione
CN113045400A (en) * 2021-03-23 2021-06-29 湖北共同药业股份有限公司 Preparation method of oxandrolone intermediate
CN113651866A (en) * 2021-08-02 2021-11-16 上海敏韬医药科技有限公司 Novel method for synthesizing cholesterol by taking 21-hydroxy-20-methyl pregn-4-ene-3-one as raw material

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN109503692A (en) * 2018-12-05 2019-03-22 华中药业股份有限公司 A kind of synthetic method of -17 beta-hydroxy -3- ketone of -17 Alpha-Methyl of androstane
CN109627273A (en) * 2018-12-05 2019-04-16 华中药业股份有限公司 A kind of synthetic method of -17 beta-hydroxy -3- ketone of -17 Alpha-Methyl of furazabol intermediate androstane
CN109651473A (en) * 2019-02-18 2019-04-19 湖南科瑞生物制药股份有限公司 A kind of preparation method of androstane -2- alkene -17- ketone
CN110563788A (en) * 2019-09-24 2019-12-13 华中药业股份有限公司 preparation method of 5 alpha-androstane-3, 17-dione
CN113045400A (en) * 2021-03-23 2021-06-29 湖北共同药业股份有限公司 Preparation method of oxandrolone intermediate
CN113045400B (en) * 2021-03-23 2023-06-09 湖北共同药业股份有限公司 Preparation method of oxaandrosane intermediate
CN113651866A (en) * 2021-08-02 2021-11-16 上海敏韬医药科技有限公司 Novel method for synthesizing cholesterol by taking 21-hydroxy-20-methyl pregn-4-ene-3-one as raw material
CN113651866B (en) * 2021-08-02 2023-07-04 王涛 Novel method for synthesizing cholesterol by taking 21-hydroxy-20-methyl pregna-4-en-3-one as raw material

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