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CN108675984A - The preparation method of Suo Feibuwei intermediates - Google Patents

The preparation method of Suo Feibuwei intermediates Download PDF

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Publication number
CN108675984A
CN108675984A CN201810652284.0A CN201810652284A CN108675984A CN 108675984 A CN108675984 A CN 108675984A CN 201810652284 A CN201810652284 A CN 201810652284A CN 108675984 A CN108675984 A CN 108675984A
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Prior art keywords
preparation
suo feibuwei
compound
intermediates according
added
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CN201810652284.0A
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Inventor
陈本顺
叶金星
周长岳
蔡进
石利平
万新强
陈峻青
徐春涛
江涛
庞峰飞
毛玲妙
李娜
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JIANGSU ALPHA PHARMACEUTICAL CO Ltd
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JIANGSU ALPHA PHARMACEUTICAL CO Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D327/00Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms
    • C07D327/10Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms two oxygen atoms and one sulfur atom, e.g. cyclic sulfates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to the preparation methods of Suo Feibuwei intermediates, the method for preparing intermediate is reacted with sulfurous acid diesters using substrate, the apparent chloride impurity generated in production procedure among subsequent reactions can not only effectively be avoided, and it is used reagent environmental protection, safety, preparation method economy, simplicity, post-processing is simple, is suitable for industrialized production.

Description

The preparation method of Suo Feibuwei intermediates
Technical field
The present invention relates to the preparation methods of Suo Feibuwei intermediates, belong to field of medicine and chemical technology.
Background technology
Suo Feibuwei (and being translated into rope fluorine cloth Wei, English name Sofosbuvir, trade name Sovaldi) is that lucky Leadd B.V opens Hair is in the new drug for the treatment of chronic hepatitis C, in 6 Nikkei U.S. Food and Drug Administration (FDA) approval December in 2013 in U.S. State lists, and January in 2014, the approval of 16 Nikkei Europe drug administration (EMEA) was listed in EU countries.
Suo Feibuwei is a kind of Hepatitis C Virus (HCV) nucleotide analog NS5B polymerase inhibitors, while Suo Fei Bu Wei is also currently the only using NS5B polymerases as the marketed drug of target spot.It is used to treat chronic hepatitis C, especially The composition treatment chronic hepatitis C (CHC) being suitable as in combination antiviral therapy scheme infects.Suo Feibuwei is through experiment Confirm therapeutic gene 1,2,3 or 4 type hepatitis subjects to include effectively the liver cell for meeting Milan standard and waiting for liver transfer operation Cancer subject and HCV/HIV-1 concurrent infection subjects.
There is extremely important market value in view of Suo Feibuwei, therefore, research and development the grinding as this field of Suo Feibuwei Study carefully hot spot.Currently, having there is the report of some patents or non-patent literature for the preparation method of Suo Feibuwei.For example, exist WO 2008045419, JOC, 2,011 76 (20), 8311-8319, J Med Chem, 2010,53 (19): 7202 - 7218 etc. report the synthesis technology of Suo Feibuwei, and synthetic route can be simply expressed as:
Wherein formula B is the important intermediate substance of Suo Feibuwei synthesis.At present for the synthesis major way of formula B compounds Including acylated method, oxidizing process etc..
During acylated method synthesis formula B compounds, inevitably it is intended at present using chlorine such as thionyl chloride, sulfonic acid chlorides Change reagent.These chlorination reagents not only pollute greatly, but also not environmentally.Simultaneously as the chlorination reagents such as thionyl chloride and sulfonic acid chloride After addition, chloride impurity SF-Cl is easy tod produce, structure is as follows:
Therefore, how effectively to avoid generating chloride impurity in subsequent preparation process, and this preparation method is economic, letter Just, it is suitable for the mode of industrialized production, and the reaction reagent that it is used should also be as being environmental protection, safety.This just becomes Those skilled in the art's technical issues that need to address in Suo Feibuwei preparation processes research and development at present.
Invention content
The technical problem to be solved by the present invention is to, it avoids introducing chlorination reagent in the building-up process of compound B, and Chloride impurity is generated in the subsequent synthesis of Suo Feibuwei.Meanwhile a kind of suitable synthesis path is found, it avoids sub- using dichloro Sulfone, sulfonic acid chloride etc. not environmentally, unfriendly reagent.
In order to solve the above-mentioned technical problem, the invention discloses a kind of preparation method of Suo Feibuwei intermediates, the preparations Method and process route is as follows:
,
Wherein, R1, R2For silanes protecting group, benzyl class protecting group, or one kind in the acetals protecting group that is collectively formed; R3, R4For alkyl, aryl, aralkyl.
Specifically include following steps:
1)It using compound II as raw material, is dissolved in the first solvent, and sulfurous acid diesters is added into the system(Compound Ⅲ), the first catalyst;Then it at a temperature of 70-80 DEG C, is heated to that there is no alcohol to steam, adjusts pH to 7-8, contained The reaction mixture of compounds Ⅳ;
2)Acetonitrile solvent is added into the reaction mixture obtained in step 1, and TEMPO is added under conditions of 0 ± 0.2 DEG C (Tetramethyl piperidine)And sodium bicarbonate, it is then slowly added into NaClO solution, stirring at normal temperature 1 hour obtains chemical compounds I.
As a preferred technical solution, after being steamed there is no alcohol in step 1, continues stirring to the reaction was complete, be cooled to Room temperature, and reaction mixture is poured slowly into water, then adjust pH to 7-8.
And further preferred scheme is the purification step for further including chemical compounds I, specially that chemical compounds I product is molten Liquid concentrates, and dichloromethane is used in combination to extract, water washing, and anhydrous sodium sulfate drying is concentrated under reduced pressure to give pale yellowish oil compounds Ⅰ。
Wherein, the first solvent is preferably toluene.
Meanwhile further preferably the first catalyst is p-methyl benzenesulfonic acid or methanesulfonic acid or p-methyl benzenesulfonic acid in the present invention With the mixture of methanesulfonic acid.
It is further preferred that in step 1, pH to 7-8. is adjusted using sodium carbonate or triethylamine
Further preferred embodiment is that sulfurous acid diesters are dimethyl sulfite.
Meanwhile we are further disclosed in the present invention as a preferred technical solution, compound II:Sulfurous acid two Ester:The molar ratio of first catalyst is 1:(1~3):(0.01~0.1).
It is further preferred that compound II:Sulfurous acid diesters:The molar ratio of first catalyst is 1:(1.05~1.15): (0.01~0.05).
In addition, as other optimal technical scheme, we are also disclosed in the present invention, MCompound ii(g):MTEMPO(mg): VNaClO(mL)=1:(1~10):(1~20)Further preferably, MCompound ii(g):MTEMPO(mg): MNaClO(mL)=1:(5.5~ 10):(10~11), and the molar ratio of compound ii and sodium bicarbonate is 1:(1~10), particularly preferred compound ii and carbon The molar ratio of sour hydrogen sodium is 1:2.
It should be understood that since step 1 and step 2 are reacted by one-step method.That is in the first step After rapid, purification procedures are not present, therefore in the adding procedure of follow-up raw material, using MCompound iiTo measure.
As a kind of perferred technical scheme, a concentration of 10%-13% of NaClO solution.
Room temperature refers to 25 ± 5 DEG C in the present invention.
The present invention provides a kind of preparation method of Suo Feibuwei intermediates, change sulfonic acid chloride that previous tradition uses, The method that thionyl chloride prepares intermediate reacts the method for preparing intermediate using substrate with sulfurous acid diesters, can not only be effective The apparent chloride impurity generated in production procedure among subsequent reactions is avoided, and is used reagent environmental protection, safety, system Preparation Method economy, simplicity, post-processing is simple, is suitable for industrialized production.
Specific implementation mode
In order to better understand the present invention, below we the present invention will be further elaborated in conjunction with specific embodiments.
Embodiment 1
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), dimethyl sulfite(37.55g 0.341 mol), toluene 800mL, p-methyl benzenesulfonic acid(2.58g 0.015mol), 70-80 DEG C is stirred to react, and then has methanol to distillate, and after eliminating methanol, is stirred for having reacted to raw material for a period of time, be cooled to Room temperature is poured into water, and PH to 7-8 is adjusted with sodium carbonate, and after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloro is added Methane, cold water washing, anhydrous sodium sulfate drying are concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, then add Enter TEMPO catalyst 455mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 820mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(87.42g 94%).
Embodiment 2
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), sulfurous acid diisopropyl ester(56.69g 0.341 mol), toluene 800mL, methanesulfonic acid(1.44g 0.015mol), 70- 80 DEG C are stirred to react, and then have methanol to distillate, and after eliminating methanol, are stirred for having reacted to raw material for a period of time, are cooled to room Temperature is poured into water, and PH to 7-8 is adjusted with sodium carbonate, and after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloromethane is added Alkane, cold water washing, anhydrous sodium sulfate drying are concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, adds TEMPO catalyst 455mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 820mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(86.96g 93.5%).
Embodiment 3
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), dimethyl sulfite(37.55g 0.341 mol), toluene 800mL, methanesulfonic acid(1.44g 0.015mol), 70-80 It DEG C is stirred to react, then there is methanol to distillate, after eliminating methanol, be stirred for a period of time has reacted to raw material, is cooled to room temperature, It is poured into water, PH to 7-8 is adjusted with sodium carbonate, after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloromethane is added, Cold water washs, and anhydrous sodium sulfate drying is concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, adds TEMPO catalyst 455mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 820mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(85.6g 92%).
Embodiment 4
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), dimethyl sulfite(37.55g 0.341 mol), toluene 800mL, p-methyl benzenesulfonic acid(2.58g 0.015mol), 70-80 DEG C is stirred to react, and then has methanol to distillate, and after eliminating methanol, is stirred for having reacted to raw material for a period of time, be cooled to Room temperature is poured into water, and PH to 7-8 is adjusted with sodium carbonate, and after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloro is added Methane, cold water washing, anhydrous sodium sulfate drying are concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, then add Enter TEMPO catalyst 745mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 745mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(82.77g 89%).
Embodiment 5
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), dimethyl sulfite(34.69g 0.315 mol), toluene 800mL, p-methyl benzenesulfonic acid(0.516g, 0.003mol), 70-80 DEG C is stirred to react, and then has methanol to distillate, and after eliminating methanol, is stirred for having reacted to raw material for a period of time, be cooled to Room temperature is poured into water, and PH to 7-8 is adjusted with sodium carbonate, and after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloro is added Methane, cold water washing, anhydrous sodium sulfate drying are concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, then add Enter TEMPO catalyst 455mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 820mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(74.4g 80%).
Embodiment 6
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), dimethyl sulfite(37.55g 0.341 mol), toluene 800mL, p-methyl benzenesulfonic acid(2.58g 0.015mol), 70-80 DEG C is stirred to react, and then has methanol to distillate, and after eliminating methanol, is stirred for having reacted to raw material for a period of time, be cooled to Room temperature is poured into water, and PH to 7-8 is adjusted with sodium carbonate, and after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloro is added Methane, cold water washing, anhydrous sodium sulfate drying are concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, then add Enter TEMPO catalyst 745mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 745mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(85.6g 92%).
Embodiment 7
Chemical compounds I synthesis detailed process be:In the reaction bulb equipped with vacuum distillation apparatus, compound ii is added(74.5g, 0.3mol), dimethyl sulfite(34.7g, 0.315 mol), toluene 800mL, p-methyl benzenesulfonic acid(0.52g, 0.003mol), 70-80 DEG C is stirred to react, and then has methanol to distillate, and after eliminating methanol, is stirred for having reacted to raw material for a period of time, be cooled to Room temperature is poured into water, and PH to 7-8 is adjusted with sodium carbonate, and after removing p-methyl benzenesulfonic acid, toluene is recovered under reduced pressure in liquid separation, and dichloro is added Methane, cold water washing, anhydrous sodium sulfate drying are concentrated under reduced pressure to give yellow oil.At 0 DEG C, anhydrous acetonitrile is added, then add Enter TEMPO catalyst 455mg and sodium bicarbonate(50.4g 0.6mol).NaClO solution is slowly added at 0 DEG C(10-13%, 820mL), stirring at normal temperature reaction 1h.Concentration organic phase is simultaneously extracted, water washing with dichloromethane, anhydrous sodium sulfate drying, and decompression is dense Contracting obtains light yellow oil chemical compounds I(83.7g 90%).
The above is the specific implementation mode of the present invention.It should be pointed out that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (10)

1. the preparation method of Suo Feibuwei intermediates, which is characterized in that the preparation method process route is as follows:
,
Wherein, R1, R2For silanes protecting group, benzyl class protecting group, or one kind in the acetals protecting group that is collectively formed;R3, R4For alkyl, aryl, aralkyl.
2. the preparation method of Suo Feibuwei intermediates according to claim 1, which is characterized in that specifically include following step Suddenly:
1)It using compound II as raw material, is dissolved in the first solvent, and sulfurous acid diesters is added into the system(Compound Ⅲ), the first catalyst;Then it at a temperature of 70-80 DEG C, is heated to that there is no alcohol to steam, adjusts pH to 7-8, obtain containing change Close the reaction mixture of object IV;
2)Acetonitrile solvent is added into the reaction mixture obtained in step 1, and TEMPO is added under conditions of 0 ± 0.2 DEG C (Tetramethyl piperidine)And sodium bicarbonate, it is then slowly added into NaClO solution, stirring at normal temperature 1 hour obtains chemical compounds I.
3. the preparation method of Suo Feibuwei intermediates according to claim 2, it is characterised in that:When in step 1 there is no After alcohol steams, continues stirring to the reaction was complete, be cooled to room temperature, and reaction mixture is poured slowly into water, then adjust Save pH to 7-8.
4. the preparation method of Suo Feibuwei intermediates according to claim 2, it is characterised in that:It further include chemical compounds I Chemical compounds I reaction mixture is specially concentrated, dichloromethane is used in combination to extract by separating step, water washing, anhydrous sodium sulfate drying, It is concentrated under reduced pressure to give light yellow oil chemical compounds I.
5. the preparation method of Suo Feibuwei intermediates according to claim 2, it is characterised in that:First solvent is preferably first Benzene.
6. the preparation method of Suo Feibuwei intermediates according to claim 2, it is characterised in that:First catalyst is to first The mixture of benzene sulfonic acid or methanesulfonic acid or p-methyl benzenesulfonic acid and methanesulfonic acid.
7. the preparation method of Suo Feibuwei intermediates according to claim 2, it is characterised in that:Carbonic acid is utilized in step 1 Sodium or triethylamine adjust pH to 7-8.
8. the preparation method of Suo Feibuwei intermediates according to claim 2, it is characterised in that:Sulfurous acid diesters are sulfurous Dimethyl phthalate.
9. the preparation method of Suo Feibuwei intermediates according to claim 2, which is characterized in that the additive amount of each substance selects From following any mixed proportion:
A. compound II:Sulfurous acid diesters:The molar ratio of first catalyst is 1:(1~3):(0.01~0.1);
B. compound II:Sulfurous acid diesters:The molar ratio of first catalyst is 1:(1.05~1.15):(0.01~0.05);
C.MCompound ii(g):MTEMPO(mg): VNaClO(mL)=1:(1~10):(1~20);
D.MCompound ii(g):MTEMPO(mg): MNaClO(mL)=1:(5.5~10):(10~11);
E. the molar ratio of compound ii and sodium bicarbonate is 1:(1~10);
F. the molar ratio of compound ii and sodium bicarbonate is 1:2.
10. the preparation method of Suo Feibuwei intermediates according to claim 2, which is characterized in that the concentration of NaClO solution For 10%-13%.
CN201810652284.0A 2018-06-22 2018-06-22 The preparation method of Suo Feibuwei intermediates Pending CN108675984A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112159388A (en) * 2020-09-30 2021-01-01 湖南阿斯达新材料有限公司 Preparation method of vinyl sulfate derivative
CN115322170A (en) * 2022-08-29 2022-11-11 苏州华一新能源科技股份有限公司 A kind of preparation method of vinyl sulfate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1803767A (en) * 2005-01-12 2006-07-19 中国科学院福建物质结构研究所 Method for preparing glycol sulfite
CN101600725A (en) * 2006-10-10 2009-12-09 法莫赛特股份有限公司 Preparation of ribofuranosyl pyrimidine nucleosides
US20140364446A1 (en) * 2013-06-05 2014-12-11 Idenix Pharmaceuticals, Inc. 1',4'-thio nucleosides for the treatment of hcv

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1803767A (en) * 2005-01-12 2006-07-19 中国科学院福建物质结构研究所 Method for preparing glycol sulfite
CN101600725A (en) * 2006-10-10 2009-12-09 法莫赛特股份有限公司 Preparation of ribofuranosyl pyrimidine nucleosides
US20140364446A1 (en) * 2013-06-05 2014-12-11 Idenix Pharmaceuticals, Inc. 1',4'-thio nucleosides for the treatment of hcv

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112159388A (en) * 2020-09-30 2021-01-01 湖南阿斯达新材料有限公司 Preparation method of vinyl sulfate derivative
CN112159388B (en) * 2020-09-30 2022-10-11 湖南阿斯达新材料有限公司 Preparation method of vinyl sulfate derivative
CN115322170A (en) * 2022-08-29 2022-11-11 苏州华一新能源科技股份有限公司 A kind of preparation method of vinyl sulfate

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