CN104892509A - Preparation method of Roxadustat - Google Patents

Preparation method of Roxadustat Download PDF

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CN104892509A
CN104892509A CN201510299804.0A CN201510299804A CN104892509A CN 104892509 A CN104892509 A CN 104892509A CN 201510299804 A CN201510299804 A CN 201510299804A CN 104892509 A CN104892509 A CN 104892509A
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preparation
methyl
nuo
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CN104892509B (en
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许学农
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Linhai Huanan Chemical Co ltd
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Suzhou Miracpharma Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D217/00Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
    • C07D217/22Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the nitrogen-containing ring
    • C07D217/26Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

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  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention discloses a preparation method of Roxadustat. The preparation steps are as follows: the Roxadustat is prepared from tyrosine through esterification, etherification, cyclization, dehydrogenation, oxidative rearrangement and acylation reaction. The preparation method has the advantages that the raw materials are easily obtained; the process is simple; and the preparation method is economic and environmental-friendly, and is suitable for industrialized production.

Description

The preparation method of Nuo get Si Ta
Technical field
The invention belongs to organic synthetic route design and bulk drug thereof and Intermediate Preparation technical field, particularly a kind of preparation method that may be used for the treatment of the medicine Nuo get Si Ta of chronic anaemia.
Background technology
Nuo get Si Ta (Roxadustat) is researched and developed by Fibrogen Inc of the U.S. (FibroGen), the micromolecular inhibitor of a kind of hypoxia inducible factor (HIF) prolyl hydroxylase that Astellas and AstraZeneca are obtained the arthorization, code name is FG-4592.Initiate brand-new oral pharmaceutical as one, FG-4592 is in the III phase clinical trial stage at present, is used for the treatment of the anemia that chronic nephropathy is relevant with end stagerenaldisease.Because this medicine does not also have the Chinese translation of standard, therefore its transliteration is " Nuo get Si Ta " at this by the applicant.
The chemistry of Nuo get Si Ta (Roxadustat, I) is called: N-[(4-hydroxyl-1-methyl-7-phenoxy group-3-isoquinoline 99.9) carbonyl] glycine, and its structural formula is:
The international monopoly WO2004108681 of Yuan Yan company provides a kind of Nuo get Si Ta intermediate and the synthetic route by this Intermediate Preparation Nuo get Si Ta thereof:
The international monopoly WO2013013609 of Zhejiang Bei Da company has carried out further optimization to the preparation method of core intermediate and acylation reaction, and its synthetic route is:
The international monopoly WO2014014834 of Yuan Yan company and WO2014014835 additionally provides synthetic route prepared by another kind of Nuo get Si Ta:
Analyze said synthesis route, although constantly improve the synthesis of Nuo get Si Ta and optimize, the cyclization mode of its essence, namely the formation of isoquinoline 99.9 female ring is substantially identical.Especially isoquinoline 99.9 change methyl incorporation way otherwise by the suzuki reaction under the plain catalysis of your gold, or to be realized by the reduction of amine.And the enlightenment raw material of above-mentioned reaction scheme all not easily obtains, repeatedly need in reaction process to carry out protecting and deprotection reaction.Obviously, this preparation process is relatively loaded down with trivial details, high expensive, brings certain difficulty to suitability for industrialized production.
For existing defective workmanship, develop concise in technology, economic environmental protection and the technology of preparing had good quality, especially seek the Technology that can adapt to suitability for industrialized production, improving the economic and social benefit of this medicine has important realistic meaning.
Summary of the invention
The object of the present invention is to provide that a kind of raw material is easy to get, concise in technology, economic environmental protection and be applicable to the preparation method of the Nuo get Si Ta (Roxadustat) of suitability for industrialized production.
For achieving the above object, present invention employs following main technical schemes: the preparation method of a kind of Nuo get Si Ta (I),
It is characterized in that its preparation comprises the steps: tyrosine and methyl alcohol, ethanol, propyl alcohol, Virahol, propyl carbinol, esterification is there is and obtains corresponding tyrosine ester (II) in isopropylcarbinol or the trimethyl carbinol under the sulphuric acid catalysis of weight percent 65-98%, described tyrosine ester (II) carries out etherification reaction with chlorobenzene or bromobenzene and obtains 2-amino-3-(4-Phenoxyphenyl) propionic ester (III) under catalyst action, described 2-amino-3-(4-Phenoxyphenyl) propionic ester (III) and acetaldehyde carry out cyclization in acid condition and obtain 1-methyl-3-manthanoate-7-phenoxy group-1, 2, 3, 4-tetrahydroisoquinoline (IV), described 1-methyl-3-manthanoate-7-phenoxy group-1, 2, 3, dehydrogenation reaction is there is and obtains 1-methyl-3-manthanoate-7-phenoxy group isoquinoline 99.9 (V) in 4-tetrahydroisoquinoline (IV) under the effect of alkali promotor, Oxido-rearrangement is there is and obtains 1-methyl-3-manthanoate-4-hydroxyl-7-phenoxy group isoquinoline 99.9 (VI) in described 1-methyl-3-manthanoate-7-phenoxy group isoquinoline 99.9 (V) under oxygenant and Tosyl chloride participate in, acylation reaction is there is and obtains Nuo get Si Ta (I) in described 1-methyl-3-manthanoate-4-hydroxyl-7-phenoxy group isoquinoline 99.9 (VI) and glycine under acid binding agent effect.
In addition, the present invention also proposes following attached technical scheme:
Alcohol used during described esterification is methyl alcohol, ethanol, propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, the trimethyl carbinol or benzylalcohol, particular methanol or ethanol.
The molar ratio of described etherification reaction raw material tyrosine ester (II) and chlorobenzene or bromobenzene is 1: 0.5-1.5, preferably 1: 1.
The alkali promotor of described etherification reaction is sodium methylate, sodium ethylate or sodium hydroxide, particular methanol sodium.
The catalyzer of described etherification reaction is copper powder, cupric oxide, Red copper oxide, cuprous chloride, cuprous bromide or cuprous iodide, preferred copper powder or cuprous bromide.
The solvent of described etherification reaction is methyl-sulphoxide.
The temperature of described etherification reaction is 130-180 DEG C, preferred 170-175 DEG C.
Described cyclization carries out under strongly acidic conditions, and the concentrated hydrochloric acid thus by adding weight percent 33-36% realizes its acidic conditions.
The temperature of described cyclization is 90-120 DEG C, preferred 100-105 DEG C.
Described dehydrogenation reaction is realized by the elimination reaction of p-toluenesulfonyl (Ts) as leavings group; so 1-methyl-3-methyl-formiate-7-phenoxy group-1; 2; 3; 4-tetrahydroisoquinoline (IV) first forms intermediate state N-p-toluenesulfonyl-1-methyl-3-methyl-formiate-7-phenoxy group-1,2,3 with Tosyl chloride under salt of wormwood effect; 4-tetrahydroisoquinoline, then this intermediate state again alkali promotor exist under cancellation tosic acid realize dehydrogenation reaction.
The alkali promotor of described dehydrogenation reaction is pyridine, N-methylmorpholine, diisopropylethylamine, DMAP, salt of wormwood, Quilonum Retard, potassium tert.-butoxide, sodium hydroxide or potassium hydroxide.
The temperature of described dehydrogenation reaction is 100-160 DEG C, preferred 120-130 DEG C.
The solvent of described dehydrogenation reaction is dioxane, toluene, dimethylbenzene, DMF or methyl-sulphoxide, preferred methyl-sulphoxide.
Described Oxido-rearrangement is oxidized by the nitrogen of isoquinoline 99.9 ring, then under the catalysis of p-toluenesulfonyl, rearrangement reaction occurs, realize 4-position hydroxylating.
The oxygenant of described Oxido-rearrangement is benzoyl hydroperoxide, metachloroperbenzoic acid, clorox, ozone or hydrogen peroxide, preferred hydrogen peroxide.
The solvent of described Oxido-rearrangement is Glacial acetic acid.
The temperature of described Oxido-rearrangement is 25-60 DEG C, preferred 35-45 DEG C.
The acid binding agent of described acylation reaction is sodium hydroxide, potassium hydroxide, sodium tert-butoxide, potassium tert.-butoxide, sodium methylate, sodium ethylate, sodium carbonate, salt of wormwood or cesium carbonate, particular methanol sodium.
Compared to prior art, the preparation method of Nuo get Si Ta (I) involved in the present invention, has that raw material is easy to get, the feature such as concise in technology and economic environmental protection, so be beneficial to the suitability for industrialized production of this bulk drug, promotes the development of its economic technology.
Embodiment
Below in conjunction with several preferred embodiment, technical solution of the present invention is further non-limitingly described in detail.
Embodiment one:
In dry reaction bottle, add tyrosine (18.1g, 0.1mmol) and methyl alcohol 250mL, ice bath is cooled to 0-5 DEG C, drips the vitriol oil 10g of weight percent 98% in 1 hour.Drip and finish, be warming up to backflow.Stirring reaction 16-20 hour, TLC detection reaction is complete.Normal pressure concentrates, pure water 100mL is added in resistates, pH to 6.5-7.0 is regulated with weight percent 10% sodium hydroxide, solid is had to separate out, filter, first alcohol and water (1: the 1) washing of chlorine cake, vacuum-drying obtains white solid L-Tyrosine methyl ester (II) 15.3g, yield 78.5%; EI-MS m/z:196 [M+H] +.
Embodiment two:
In nitrogen atmosphere and ice bath, in reaction flask, add L-Tyrosine methyl ester (II) (9.8g, 50mmol), potassium methylate (3.5g, 50mmol) and methyl alcohol 50mL, after not having gas to produce, be heated to backflow, stirring reaction 2 hours.Normal pressure is concentrated removes solvent, copper powder (the 0.2g of methyl-sulphoxide 25mL, brand-new is added in residue, 3.1mmol), slowly be warming up to 150-155 DEG C under stirring, about after half an hour, drip bromobenzene (7.9g, 50mmol), continue to be warming up to 170-175 DEG C, stirring reaction 3 hours, TLC detection reaction terminates.Be cooled to 60 DEG C, add methyl alcohol and keep micro-and boil, filtered while hot, filter cake reusable heat washing with alcohol three times, merge organic phase, be cooled to 0 DEG C, filter, vacuum-drying obtains white solid 2-amino-3-(4-Phenoxyphenyl) methyl propionate (III) 11.5g, yield 84.9%; EI-MS m/z:272 [M+H] +.
Embodiment three:
2-amino-3-(4-Phenoxyphenyl) methyl propionate (III) (10.8g is added in reaction flask, 40mmol), weight percent 40% acetaldehyde (20g, 0.2mol) and weight percent be 35% concentrated hydrochloric acid 50mL, back flow reaction 1 hour.Continue to add the concentrated hydrochloric acid 25mL that weight percent 40% acetaldehyde (10g, 0.1mol) and weight percent are 35%, then back flow reaction 3-5 hour.Be cooled to 4-7 DEG C, add ethyl acetate, extracting and demixing.Water layer sodium hydroxide solution regulates pH to 11-12, is extracted with ethyl acetate three times, merges organic phase, anhydrous sodium sulfate drying, concentrating under reduced pressure obtains white solid 1-methyl-3-methyl-formiate-7-phenoxy group-1,2,3,4-tetrahydroisoquinoline (IV) 8.4g, yield 70.7%; Mass spectrum (EI): EI-MS m/z:298 [M+H] +.
Embodiment four:
Under ice bath, 1-methyl-3-methyl-formiate-7-phenoxy group-1,2,3 is added in reaction flask, 4-tetrahydroisoquinoline (IV) (5.9g, 20mmol) and methylene dichloride 100mL, 0 DEG C and add salt of wormwood (13.8g, 0.1mol), Tosyl chloride (11.4g under stirring, 60mmol), finish, remove ice bath, stirring at room temperature 3 hours.Add water 30mL, stratification after stirring, organic phase uses dilute hydrochloric acid, water and saturated common salt water washing successively, concentrated, add weight percent 30% sodium hydroxide solution (8.0g, 60mmol) and methyl-sulphoxide 60mL in products therefrom, be progressively warming up to 120-130 DEG C, stirring reaction 2-4 hour, TLC detection reaction terminates.Be down to room temperature, add water 100mL, be extracted with ethyl acetate 3 times, merge organic phase, use water and saturated common salt water washing successively, anhydrous magnesium sulfate drying, concentrated, gained oily matter ethyl acetate and normal hexane (1: 3) recrystallization, vacuum-drying obtains off-white color solid 1-methyl-3-methyl-formiate-7-phenoxy group isoquinoline 99.9 (V) 5.25g, yield 89.6%; EI-MS m/z:294 [M+H] +, 1h NMR (DMSO-d 6) δ 2.85 (s, 3H), 3.97 (s, 3H), 7.16-7.24 (m, 3H), 7.49-7.60 (m, 4H), 8.35 (d, J=9.0,1H), 8.94 (s, 1H).
Embodiment five:
1-methyl-3-methyl-formiate-7-phenoxy group isoquinoline 99.9 (V) (2.93g is added in reaction flask, 10mmol) with Glacial acetic acid 50mL, stir the lower hydrogen peroxide 5mL dripping weight percent 30%, be warming up to 60-70 DEG C, the mixed solution of weight percent 30% hydrogen peroxide 2mL and Glacial acetic acid 12mL is slowly dripped in 10 hours, drip and finish, continue reaction 20-24 hour.Concentrating under reduced pressure, adds ethanol, continues distillation to eliminate remaining Glacial acetic acid.Residuum methylene dichloride dissolves, and the sodium bicarbonate washing of weight percent 5%, separates organic phase, anhydrous sodium sulfate drying.Filter, add Tosyl chloride (3.8g, 20mmol) in gained solution, be warming up to backflow, stirring reaction 3-4 hour, TLC detection reaction terminates.Decompression steams solvent, is down to room temperature, adds methyl alcohol, have solid to separate out, be cooled to 0 DEG C, hold over night.Filter, filter cake cold methanol washes twice, and vacuum-drying obtains off-white color solid 1-methyl-3-methyl-formiate-4-hydroxyl-7-phenoxy group isoquinoline 99.9 (VI) 1.86g, yield 60.2%; EI-MS m/z:310 [M+H] +, 1h NMR (DMSO-d 6) δ 2.90 (s, 3H), 4.05 (s, 3H), 7.17-7.26 (m, 3H), 7.49-7.61 (m, 4H), 8.38 (d, J=9.0,1H), 11.7 (s, 1H).
Embodiment six:
1-methyl-3-methyl-formiate-4-hydroxyl-7-phenoxy group isoquinoline 99.9 (VI) (1.55g is added in magnetic agitation and withstand voltage reaction flask, 5mmol), glycine (1.13g, 15mmol) and the methanol solution (30mL) of sodium methylate (3.25g, 6mmol).Sealing, be slowly heated to 120 DEG C, stirring reaction 8-10 hour, TLC detection reaction terminates.Be cooled to room temperature, have solid to separate out.Suction filtration, gained solids with methanol recrystallization, then pull an oar with acetone, gained solid obtains white solid Nuo get Si Ta 1.40g through vacuum-drying, yield 79.5%; EI-MS m/z:353 [M+H] +, 1h NMR (DMSO-d 6) δ 2.72 (s, 3H), 3.99 (d, J=6.0,2H), 7.18-7.28 (m, 3H), 7.49-7.63 (m, 4H), 8.31 (d, J=8.8,1H), 9.08 (s, 1H), 13.41 (brs, 1H).
It is pointed out that above-described embodiment is only and technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (9)

1. the preparation method of Yi Zhong Nuo get Si Ta (I),
It is characterized in that its preparation comprises the steps: tyrosine and methyl alcohol, ethanol, propyl alcohol, Virahol, propyl carbinol, esterification is there is and obtains corresponding tyrosine ester in isopropylcarbinol or the trimethyl carbinol under the sulphuric acid catalysis of weight percent 65-98%, described tyrosine ester and chlorobenzene or bromobenzene carry out etherification reaction and obtain 2-amino-3-(4-Phenoxyphenyl) propionic ester under catalyst action, described 2-amino-3-(4-Phenoxyphenyl) propionic ester and acetaldehyde carry out cyclization in acid condition and obtain 1-methyl-3-manthanoate-7-phenoxy group-1, 2, 3, 4-tetrahydroisoquinoline, described 1-methyl-3-manthanoate-7-phenoxy group-1, 2, 3, dehydrogenation reaction is there is and obtains 1-methyl-3-manthanoate-7-phenoxy group isoquinoline 99.9 in 4-tetrahydroisoquinoline under the effect of alkali promotor, Oxido-rearrangement is there is and obtains 1-methyl-3-manthanoate-4-hydroxyl-7-phenoxy group isoquinoline 99.9 in described 1-methyl-3-manthanoate-7-phenoxy group isoquinoline 99.9 under oxygenant and Tosyl chloride participate in, acylation reaction is there is and obtains Nuo get Si Ta (I) in described 1-methyl-3-manthanoate-4-hydroxyl-7-phenoxy group isoquinoline 99.9 and glycine under acid binding agent effect.
2. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the catalyzer of described etherification reaction is copper powder, cupric oxide, Red copper oxide, cuprous chloride, cuprous bromide or cuprous iodide.
3. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the temperature of described etherification reaction is 130-180 DEG C.
4. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the temperature of described cyclization is 90-120 DEG C.
5. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the alkali promotor of described dehydrogenation reaction is pyridine, N-methylmorpholine, diisopropylethylamine, DMAP, salt of wormwood, Quilonum Retard, potassium tert.-butoxide, sodium hydroxide or potassium hydroxide.
6. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the temperature of described dehydrogenation reaction is 100-160 DEG C.
7. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the solvent of described dehydrogenation reaction is dioxane, toluene, dimethylbenzene, DMF or methyl-sulphoxide.
8. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the oxygenant of described Oxido-rearrangement is benzoyl hydroperoxide, metachloroperbenzoic acid, clorox, ozone or hydrogen peroxide.
9. the preparation method of Nuo get Si Ta as claimed in claim 1, is characterized in that the acid binding agent of described acylation reaction is sodium hydroxide, potassium hydroxide, sodium tert-butoxide, potassium tert.-butoxide, sodium methylate, sodium ethylate, sodium carbonate, salt of wormwood or cesium carbonate.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106187888A (en) * 2016-07-18 2016-12-07 江苏德源药业股份有限公司 FG 4592 monocrystalline and preparation method thereof
CN106478504A (en) * 2016-09-29 2017-03-08 上海勋和医药科技有限公司 The method preparing Roxadustat intermediate
CN106699657A (en) * 2015-11-13 2017-05-24 中国科学院大连化学物理研究所 Method for solvent accelerated selective dehydrogenation of tetrahydroisoquinoline type compound
CN106916105A (en) * 2015-12-28 2017-07-04 徐州万邦金桥制药有限公司 A kind of method that purifying can win U.S.
CN107698505A (en) * 2017-11-20 2018-02-16 孙婷婷 A kind of Nuo get Si Ta preparation method
EP3305769A1 (en) 2016-10-07 2018-04-11 Zentiva K.S. Method for preparation of (7-phenoxy-4-hydroxy-1-methyl-isoquinoline-3-carbonyl)-glycine (roxedustat) and its intermediates based on simultaneous opening of oxazolic ring, fission of ether and creation of imine
CN107998134A (en) * 2016-11-01 2018-05-08 江苏万邦生化医药股份有限公司 The beautiful application in the pharmaceutical preparation for preparing auxiliary treatment diabetes can be won
CN108020603A (en) * 2016-11-02 2018-05-11 江苏万邦生化医药股份有限公司 A kind of high efficient liquid phase analysis method of U.S. can be won
CN108017583A (en) * 2016-11-01 2018-05-11 徐州万邦金桥制药有限公司 A kind of preparation method for winning U.S.
CN109180580A (en) * 2016-02-28 2019-01-11 深圳市塔吉瑞生物医药有限公司 A kind of substituted heteroaryl compound and the composition comprising the compound and application thereof
CN109305940A (en) * 2018-08-29 2019-02-05 河北东康生物科技有限公司 A kind of his key intermediate of Luo Shasi and its synthetic method
CN109369525A (en) * 2018-12-29 2019-02-22 安礼特(上海)医药科技有限公司 Its novel crystal forms and preparation method thereof of Luo Shasi
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CN109776415A (en) * 2019-03-07 2019-05-21 福建南方济民医药研发中心有限公司 A kind of preparation method of Roxadustat intermediate
WO2019106621A1 (en) * 2017-12-01 2019-06-06 Dr. Reddy's Laboratories Limited Process for the preparation of roxadustat and its intermediates
WO2019114811A1 (en) 2017-12-14 2019-06-20 南京卡文迪许生物工程技术有限公司 Method for synthesis of roxadustat and intermediate compounds thereof
WO2019174631A1 (en) * 2018-03-16 2019-09-19 上海医药集团股份有限公司 Method for preparing norstat
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CN112194624A (en) * 2020-11-18 2021-01-08 江苏豪森药业集团有限公司 Crystal form of isoquinoline compound and preparation method thereof
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CN112679428A (en) * 2019-10-17 2021-04-20 罗欣药业(上海)有限公司 New crystal form of roxasistat and preparation method thereof
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WO2021252295A1 (en) 2020-06-13 2021-12-16 Suzhou Pengxu Pharmatech Co., Ltd. Process of making roxadustat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101374815A (en) * 2006-01-27 2009-02-25 菲布罗根有限公司 Cyanoisoquinoline compounds that stabilize hypoxia inducible factor (HIF)
CN103435546A (en) * 2012-07-16 2013-12-11 菲布罗根有限公司 Method for preparing isoquinoline compounds
WO2014014835A2 (en) * 2012-07-16 2014-01-23 Fibrogen, Inc. Crystalline forms of a prolyl hydroxylase inhibitor
CN104024227A (en) * 2011-07-22 2014-09-03 北京贝美拓新药研发有限公司 Polymorphic forms of compounds as prolyl hydroxylase inhibitor, and uses thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101374815A (en) * 2006-01-27 2009-02-25 菲布罗根有限公司 Cyanoisoquinoline compounds that stabilize hypoxia inducible factor (HIF)
CN104024227A (en) * 2011-07-22 2014-09-03 北京贝美拓新药研发有限公司 Polymorphic forms of compounds as prolyl hydroxylase inhibitor, and uses thereof
CN103435546A (en) * 2012-07-16 2013-12-11 菲布罗根有限公司 Method for preparing isoquinoline compounds
WO2014014835A2 (en) * 2012-07-16 2014-01-23 Fibrogen, Inc. Crystalline forms of a prolyl hydroxylase inhibitor
CN103539735A (en) * 2012-07-16 2014-01-29 菲布罗根有限公司 Crystalline forms of a prolyl hydroxylase inhibitor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FIBROGEN INC.: "FibroGen Announces Preliminary Clinical Findings on Positive Effects of FG-4592,Its Investigational HIF-PHI Therapy for Anemia,on Lowering Blood Pressure and Cholesterol in Patients with Chronic Kidney Disease", 《BIOMEDICAL MARKET NEWSLETTER》 *

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN106699657A (en) * 2015-11-13 2017-05-24 中国科学院大连化学物理研究所 Method for solvent accelerated selective dehydrogenation of tetrahydroisoquinoline type compound
CN106916105A (en) * 2015-12-28 2017-07-04 徐州万邦金桥制药有限公司 A kind of method that purifying can win U.S.
CN109180580B (en) * 2016-02-28 2021-01-12 深圳市塔吉瑞生物医药有限公司 Substituted heteroaryl compound, composition containing compound and application of compound
CN109180580A (en) * 2016-02-28 2019-01-11 深圳市塔吉瑞生物医药有限公司 A kind of substituted heteroaryl compound and the composition comprising the compound and application thereof
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CN106478504A (en) * 2016-09-29 2017-03-08 上海勋和医药科技有限公司 The method preparing Roxadustat intermediate
CN106478504B (en) * 2016-09-29 2020-04-21 上海勋和医药科技有限公司 Process for the preparation of Roxadustat intermediates
EP3305769A1 (en) 2016-10-07 2018-04-11 Zentiva K.S. Method for preparation of (7-phenoxy-4-hydroxy-1-methyl-isoquinoline-3-carbonyl)-glycine (roxedustat) and its intermediates based on simultaneous opening of oxazolic ring, fission of ether and creation of imine
CN107998134A (en) * 2016-11-01 2018-05-08 江苏万邦生化医药股份有限公司 The beautiful application in the pharmaceutical preparation for preparing auxiliary treatment diabetes can be won
CN108017583B (en) * 2016-11-01 2021-04-06 徐州万邦金桥制药有限公司 A kind of preparation method of Kebomei
CN108017583A (en) * 2016-11-01 2018-05-11 徐州万邦金桥制药有限公司 A kind of preparation method for winning U.S.
CN108020603A (en) * 2016-11-02 2018-05-11 江苏万邦生化医药股份有限公司 A kind of high efficient liquid phase analysis method of U.S. can be won
CN108020603B (en) * 2016-11-02 2020-09-08 江苏万邦生化医药集团有限责任公司 A high-performance liquid analysis method of Kebomei
CN107698505A (en) * 2017-11-20 2018-02-16 孙婷婷 A kind of Nuo get Si Ta preparation method
CN111566090A (en) * 2017-12-01 2020-08-21 雷迪博士实验室有限公司 Preparation method of roxasistat and intermediate thereof
WO2019106621A1 (en) * 2017-12-01 2019-06-06 Dr. Reddy's Laboratories Limited Process for the preparation of roxadustat and its intermediates
JP2021511369A (en) * 2017-12-14 2021-05-06 ナンジン カベンディッシュ バイオ−エンジニアリング テクノロジー カンパニー リミテッド Roxadustat synthesis method and its intermediate compounds
WO2019114811A1 (en) 2017-12-14 2019-06-20 南京卡文迪许生物工程技术有限公司 Method for synthesis of roxadustat and intermediate compounds thereof
JP7087103B2 (en) 2017-12-14 2022-06-20 ナンジン カベンディッシュ バイオ-エンジニアリング テクノロジー カンパニー リミテッド Roxadustat synthesis method and its intermediate compounds
US11465970B2 (en) 2017-12-14 2022-10-11 Nanjing Cavendish Bio-Engineering Tech. Co., LTD. Method for synthesis of Roxadustat and intermediate compounds thereof
WO2019174631A1 (en) * 2018-03-16 2019-09-19 上海医药集团股份有限公司 Method for preparing norstat
CN115246789A (en) * 2018-03-16 2022-10-28 上海医药集团青岛国风药业股份有限公司 Preparation method of nodispat
CN115246789B (en) * 2018-03-16 2023-10-17 上海医药集团青岛国风药业股份有限公司 Preparation method of nodestrat
CN110507655A (en) * 2018-05-22 2019-11-29 厦门大学 Application of compound FG-4592 in the preparation of pharmaceutical preparations for the treatment of thyroid hormone receptor-mediated diseases
WO2019223688A1 (en) * 2018-05-22 2019-11-28 厦门大学 Application of compound fg-4592 in preparation of pharmaceutical preparation for treating thyroid hormone receptor-mediated diseases
CN109305940A (en) * 2018-08-29 2019-02-05 河北东康生物科技有限公司 A kind of his key intermediate of Luo Shasi and its synthetic method
CN109305940B (en) * 2018-08-29 2021-12-14 河北东康生物科技有限公司 Rosemastat key intermediate and synthesis method thereof
CN109400528B (en) * 2018-12-18 2022-03-15 深圳科兴药业有限公司 Synthesis method of kebomei
CN109400528A (en) * 2018-12-18 2019-03-01 深圳科兴药业有限公司 A kind of synthetic method for winning beauty
CN109369525A (en) * 2018-12-29 2019-02-22 安礼特(上海)医药科技有限公司 Its novel crystal forms and preparation method thereof of Luo Shasi
CN109776415B (en) * 2019-03-07 2020-11-17 福建南方制药股份有限公司 Preparation method of Roxadustat intermediate
CN109776415A (en) * 2019-03-07 2019-05-21 福建南方济民医药研发中心有限公司 A kind of preparation method of Roxadustat intermediate
RU2709493C1 (en) * 2019-08-01 2019-12-18 Марат Феликсович Фазылов Method of producing roxadustat
WO2021020998A1 (en) * 2019-08-01 2021-02-04 Марат Феликсович ФАЗЫЛОВ Method for producing roxadustat
CN112679428A (en) * 2019-10-17 2021-04-20 罗欣药业(上海)有限公司 New crystal form of roxasistat and preparation method thereof
WO2021214785A1 (en) 2020-04-21 2021-10-28 Mylan Laboratories Limited Improved process for the preparation of roxadustat
CN115867537A (en) * 2020-04-21 2023-03-28 迈兰实验室有限公司 Improved process for the preparation of a rasagiline base
CN113801060A (en) * 2020-06-13 2021-12-17 苏州鹏旭医药科技有限公司 Preparation method of polysubstituted isoquinoline compound
WO2021252295A1 (en) 2020-06-13 2021-12-16 Suzhou Pengxu Pharmatech Co., Ltd. Process of making roxadustat
CN111592490B (en) * 2020-07-02 2022-04-22 浙江工业大学 Preparation method of key intermediate of roxasistat
CN111592490A (en) * 2020-07-02 2020-08-28 浙江工业大学 Preparation method of key intermediate of roxasistat
CN112194624A (en) * 2020-11-18 2021-01-08 江苏豪森药业集团有限公司 Crystal form of isoquinoline compound and preparation method thereof
CN112500344B (en) * 2020-11-18 2022-07-01 江苏豪森药业集团有限公司 Crystalline form of roxasistat and preparation method thereof
CN112500344A (en) * 2020-11-18 2021-03-16 江苏豪森药业集团有限公司 Crystalline form of roxasistat and preparation method thereof
CN113248432A (en) * 2021-04-25 2021-08-13 南京正济医药研究有限公司 Novel method for preparing intermediate of roxasistat in high yield

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