WO2013086935A1 - 1-(2-氟苄基)-1H -吡唑并[3,4- b]吡啶-3 -甲脒盐酸盐的合成方法 - Google Patents

1-(2-氟苄基)-1H -吡唑并[3,4- b]吡啶-3 -甲脒盐酸盐的合成方法 Download PDF

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WO2013086935A1
WO2013086935A1 PCT/CN2012/085451 CN2012085451W WO2013086935A1 WO 2013086935 A1 WO2013086935 A1 WO 2013086935A1 CN 2012085451 W CN2012085451 W CN 2012085451W WO 2013086935 A1 WO2013086935 A1 WO 2013086935A1
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compound
pyrazolo
fluorobenzyl
reaction conditions
reacted
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PCT/CN2012/085451
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English (en)
French (fr)
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李进
杨晓宇
朱经纬
杨民民
吴希罕
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南京药石药物研发有限公司
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Priority to JP2014545075A priority Critical patent/JP5791825B2/ja
Priority to US14/364,040 priority patent/US8957210B2/en
Priority to IN5281DEN2014 priority patent/IN2014DN05281A/en
Priority to DE112012005176.9T priority patent/DE112012005176B4/de
Publication of WO2013086935A1 publication Critical patent/WO2013086935A1/zh
Priority to IL233066A priority patent/IL233066B/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D471/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04Ortho-condensed systems

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  • the invention relates to the field of chemical synthesis, and particularly relates to an important intermediate of the anti-thromboembolic disease drug Riociguat, 1-(2-fluorobenzyl)-1H-B-pyrazolo[3,4-b]pyridine-3-formamidine.
  • a method of synthesizing hydrochloride is a method of synthesizing hydrochloride.
  • Riociguat can be used to treat chronic thromboembolic pulmonary hypertension (CTEPH) or pulmonary hypertension, and its structure is as follows:
  • the reported synthesis method has the following disadvantages: raw materials (1) and raw materials (2) are difficult to obtain in the domestic market, and the price is high; the yield in the first two steps is also relatively low; ( ⁇ ) post-processing requires column chromatography; Technical issues of scale production.
  • the present invention discloses a process for preparing 1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxylate hydrochloride (Formula 11).
  • the invention mainly solves the technical problem that the existing 1 - (2-fluorobenzyl)-1H-B ratio of oxazolo[3,4-b]pyridine-3-carboxylate hydrochloride has low yield and cannot be mass-produced.
  • the preparation method of the present invention is as follows:
  • the invention uses 3-iodo-1H-pyrazolo[3,4-b]pyridine as a raw material; reacts with o-fluorobenzyl bromide to obtain compound (10); reacts with cyano zinc to obtain compound (6); and sodium methoxide, Ammonium chloride, acetic acid, methanol to obtain compound (8); react with hydrogen chloride gas to obtain 1-(2-fluorobenzyl)-1H-B ratio of oxazolo[3,4-b]pyridine-3-carboxamidine hydrochloride salt.
  • step reaction conditions adding potassium carbonate
  • Step VIII reaction conditions adding zinc powder, cyano zinc, 1, bismuth (diphenylphosphino) ferrocene (dppf) and tetrakistriphenylphosphine palladium (Pd (PPh 3 ) 4 );
  • V step reaction conditions adding methanol and sodium methoxide
  • VI step reaction conditions adding ammonium chloride and acetic acid;
  • Step IX Reaction conditions: Hydrochloric acid or hydrogen chloride is added.
  • the molar ratio of the compound (9) to o-fluorobromobenzyl and potassium carbonate is preferably 1: 1.0 to 1.5: 1.5 to 3.0.
  • the reaction solvent in the step VII is preferably tetrahydrofuran, N,N-dimethylformamide (DMF) or dimethyl sulfoxide. Further preferred is N,N-dimethylformamide.
  • the reaction temperature in the step VIII is preferably 100 to 150 V, and the reaction solvent is preferably N,N-dimethylacetamide (DMAC).
  • DMAC N,N-dimethylacetamide
  • the molar ratio of the compound (10) to the cyano zinc in the step VIII is preferably 1: 0.7 to 1: 1.2.
  • the reaction solvent in the step IX is preferably methyl tert-butyl ether.
  • the innovation of the preparation method of the invention is as follows: 3-iodo-1H-pyrazolo[3,4-b]pyridine is used as raw material, and the raw material is cheap and easy to obtain.
  • the first step is carried out by reacting with o-fluorobromobenzyl at room temperature under the action of potassium carbonate (K 2 C0 3 ) to obtain compound (10) in a yield of 71.16%; the second step is to react with cyano zinc to obtain a compound ( 6), yield: 63.7%; the third step is reacted with sodium methoxide, ammonium chloride, acetic acid, methanol to obtain compound (8); the fourth step is reacted with hydrogen chloride gas to obtain 1-(2-fluorobenzyl)pyrazole [3,4-b]pyridine-3 -formamidine hydrochloride, the total yield of the latter two steps was 99%.
  • the method has the advantages of cheap raw materials, easy availability, improved total yield, mild reaction conditions, and is a synthetic method with large
  • the aqueous layer was extracted with DCM, EtOAc EtOAcjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

本发明涉及化学合成领域,具体涉及合成抗血栓栓塞性疾病药物Riociguat的重要中间体1-(2-氟苄基)-1H -吡唑并[3,4- b]吡啶-3-甲脒盐酸盐的合成方法。其特征是:本发明以3-碘-1H-吡唑并[3,4-b]吡啶为原料;与邻氟溴苄反应得到化合物(10);与氰基锌反应得到化合物(6);与甲醇钠,氯化铵,醋酸,甲醇反应得到化合物(8);与氯化氢气体反应即得。本方法具有原料便宜,易得,总收率高,反应条件温和等特点,是一种具备大规模制备价值的合成方法。

Description

1- (2-氟苄基) -1H -吡唑并 [3, 4- b]吡啶 -3 -甲脒盐酸盐的合成方法 技术领域
本发明涉及化学合成领域, 具体涉及合成抗血栓栓塞性疾病药物 Riociguat的重要中 间体 1- (2-氟苄基) -1H -B比唑并 [3, 4- b]吡啶 -3 -甲脒盐酸盐的合成方法。
背景技术
Riociguat可用于治疗慢性血栓栓塞性肺动脉高压 (CTEPH) 或肺动脉高压, 其结构 式如下:
Figure imgf000002_0001
Chem.Med.Chem. 2009, 4, 853-865报道相关化合物方法如下:
Figure imgf000002_0002
1 - (2- 氟苄基) -1H-吡唑并 [3, 4-b]吡啶 -3-甲脒盐酸盐是合成 Riociguat的重要中 间体。
对于 1-(2- 氟苄基) -1H-吡唑并 [3, 4-b]吡啶 -3-甲脒(以下简称化合物 8)盐酸盐(以 下简称化合 11) 制备, US20020173514报道相关化合物方法如下:
Figure imgf000003_0001
各步反应试剂与产率: (I)三氟乙酸(TFA), 1, 4-二氧六环; (Π) 3-二甲氨基丙烯 醛, TFA, 两步 49.9%; (III) 氨气 (ΝΗ3), 甲醇, 100%; (IV) 三氟乙酸酐, 吡啶, 四氢 呋喃 (THF), 100%; (V)甲醇钠, 甲醇 (MeOH), 100%; (VI)氯化铵,醋酸(CH3COOH), 甲醇, 76.4%。
该报道的合成方法存在以下不足: 原料 (1) 和原料 (2) 国内市场很难买到, 并且 价格高; 前两步收率也比较低; (Π) 后处理需要柱层析; 无法大规模生产的技术问题。
发明内容
本发明公开了一种制备 1 - (2- 氟苄基) -1H-吡唑并 [3, 4-b]吡啶 -3 -甲脒盐酸盐(化 合物 11) 的方法。 主要解决现有 1 - (2-氟苄基) -1H-B比唑并 [3, 4-b]吡啶 -3 -甲脒盐酸盐 制备收率低, 无法大规模生产的技术问题。
本发明的制备方法如下:
本发明以 3-碘 -1H-吡唑并 [3, 4-b]吡啶为原料; 与邻氟溴苄反应得到化合物 (10); 与氰基锌反应得到化合物 (6); 与甲醇钠, 氯化铵, 醋酸, 甲醇反应得到化合物 (8); 与氯化氢气体反应得到 1- (2-氟苄基) -1H-B比唑并 [3, 4-b]吡啶 -3-甲脒盐酸盐。
反应式如下:
Figure imgf000004_0001
其中 VII步骤反应条件: 加入碳酸钾;
VIII步骤反应条件: 加入锌粉、 氰基锌、 1, Γ-双 (二苯基膦)二茂铁 (dppf)和 四三苯基磷钯 (Pd(PPh3)4);
V步骤反应条件: 加入甲醇和甲醇钠;
VI步骤反应条件: 加入氯化铵和醋酸;
IX步骤反应条件: 加入盐酸或通入氯化氢。
其中化合物 (9) 与邻氟溴苄和碳酸钾三者的摩尔比优选: 1: 1.0〜1.5: 1.5〜3.0。
VII 步骤中反应溶剂优选四氢呋喃、 N,N-二甲基甲酰胺 (DMF) 或二甲亚砜。 进一 步优选 N,N-二甲基甲酰胺。
VIII步骤中反应温度优选 100〜150 V ,反应溶剂优选 N, N-二甲基乙酰胺(DMAC)。
VIII步骤中化合物 (10) 与氰基锌的摩尔比优选: 1: 0.7〜1: 1.2。
IX步骤中反应溶剂优选甲基叔丁基醚。
本发明制备方法创新点在于: 以 3-碘 - 1H-吡唑并 [3, 4-b]吡啶为原料, 原料便宜, 易 得。 第一步在碳酸钾(K2C03)作用下, 与邻氟溴苄在室温下即可反应得到化合物(10), 收率: 71.16%; 第二步与氰基锌等反应得到化合物(6), 收率: 63.7%; 第三步与甲醇钠, 氯化铵, 醋酸, 甲醇反应得到化合物(8); 第四步与氯化氢气体反应得到 1 - (2-氟苄基) 吡唑并 [3, 4- b]吡啶 -3 -甲脒盐酸盐, 后两步总收率 99%。 本方法具有原料便宜, 易 得, 总收率提高了很多, 反应条件温和, 是一种具备大规模制备价值的合成方法。 具体实施方式
实施例 1
化合物 (10) 的合成
Figure imgf000005_0001
5 L四口瓶中, 加入 DMF 4 L溶解的 3-碘 -1H-吡唑并 [3, 4-b]吡啶 400 g ( 1.63 mol, l.O eq), 邻氟溴苄 369 g ( 1.96 mol, 1.2 eq), K2C03 450 g (3.27 mol, 1.5 eq), 室温反应 10 ho TLC监测反应完全, 反应液倒入水中,搅拌析出大量会色固体,过滤, 重结晶 PE: EA=5: 1得淡黄色固体 411 g, 收率: 71.16%。
1H NMR (400 MHz, CDC13 ) δ (ppm): 8.62 (d, 1H), 7.85 ( d, 1H), 7.27 (dd, 1H), 7.11 (dd, 1H); 6.96-7.08 (m, 3H), 5.82 (s, 2H)。 化合物 (6) 的合成
Figure imgf000005_0002
10 L四口瓶中依次加入化合物(10) 625 g ( 1.77 mol, l.O eq),锌粉 11.8 g (0.18 mol, 0.1 eq), dppf49.1 g (0.0885 mol, 0.05 eq), Zn(CN)2 145.6 g ( 1.24 mol, 0.7 eq), Pd(PPh3)4 208 g (0.18 mol, 0.1 eq), DMAC 7.5 L, 加热至 120 °C, 反应 13 h。 TLC监测反应完全, 加入 12 L DCM, 大量水洗涤。 水层 DCM 萃取, 合并有机相, 无水硫酸钠干燥, 减压蒸 馏去一半的溶剂, 通过适量的硅胶层, 过滤, 二氯甲烷洗涤, 浓縮得淡黄色固体 272 g, 收率 63.7%。
1H NMR (400 MHz, CDC13 ) δ (ppm): 8.73 (d, 1H) ;8.23 (dd, 1H) ;7.39 (dd, 1H); 7.26-7.33 (m, 2H); 7.03-7.19 (m, 2H); 5.83 (s, 2H)。 化合物 (8) 的合成
Figure imgf000006_0001
10 L四口瓶中, 加入化合物 (6) 919.7 g (3.646mol, l.O eq), MeOH 7 L, 搅拌下 加入 MeONa 295 g (5.469 mol, 1.5 eq), 室温下搅拌 2 h, TLC监测显示原料已经消失, 完全转变为中间体 (7), 加入 CH3C02H 329 g (5.469 mol, 1.5 eq), NH4C1 293 g (5.469 mol, 1.5 eq), 加热回流反应过夜, TLC 监测反应完全, 降温, 析出大量固体, 过滤, DCM洗涤, 得到白色固体 981 g, 为化合物 (8) , 直接用于下一步。 化合物 (11 ) 的合成
Figure imgf000006_0002
将化合物 (8) 981.0 g (3.646mol, l.O eq) 加入 5 L甲基叔丁基醚中, 搅拌, 呈悬 浊液, 通入 HC1气体约 2.5 h, 过滤, DCM洗涤, 过滤烘干, 得到 1103.7 g白色固体。 两步的总收率: 99.0%。 纯度: 99%。
1H NMR (400 MHz, D20) δ (ppm): 9.58 (d, 4H) ;8.77 (t, 1H) ;8.65 (d, 1H); 7.54 (dd, 1H); 7.41 (m, 1H); 7.30 (m, 2H), 7.16 (t, 1H) 5.90 (s, 2H)。
实施例 2
化合物 (10) 的合成
Figure imgf000007_0001
1 L四口瓶中,加入 DMSO 500 mL溶解的 3-碘 -1H-吡唑并 [3, 4-b]吡啶 40 g (0.163 mol, l.O eq), 邻氟溴节 86.25 g (0.245 mol, 1.5 eq), K2C03 45 g (0.327 mol, 1.5 eq), 室温反应 10 h。 TLC监测反应完全, 浓縮干后, 倒入水中, 搅拌析出大量灰色固体, 过 滤, 重结晶 PE: EA=5: 1得淡黄色固体 404 g, 收率: 69.5%。
1H NMR (400 MHz, CDC13 ) δ (ppm): 8.62 (d, 1H), 7.85 ( d, 1H), 7.27 (dd, 1H), 7.11 (dd, 1H); 6.96-7.08 (m, 3H), 5.82 (s, 2H)。 化合物 (6) 的合成
Figure imgf000007_0002
10 L四口瓶中依次加入化合物 ( 10) 62.5 g (0.177 mol, l.O eq), 锌粉 1.18 g (0.018 mol, O.l eq), dppf 4.91 g (0.00885 mol, 0.05 eq), Zn(CN)2 2.50 g (0.212 mol, 1.2 eq), Pd(PPh3)4 20.8 g (0.018 mol, O.l eq), DMAC 750 mL, 加热至 150 °C, 反应 10 h。 TLC 监测反应完全, 加入 1 L DCM, 大量水洗涤。 水层 DCM 萃取, 合并有机相, 无水硫酸 钠干燥, 减压蒸馏去一半的溶剂, 通过适量的硅胶层, 过滤, 二氯甲烷洗涤, 浓縮得淡 黄色固体 27.2 g, 收率 63.7%。
1H NMR (400 MHz, CDC13 ) δ (ppm): 8.73 (d, 1H) ;8.23 (dd, 1H) ;7.39 (dd, 1H); 7.26-7.33 (m, 2H); 7.03-7.19 (m, 2H); 5.83 (s, 2H)。

Claims

权利要求书
1、 一种化合物 (11 ) 的制备方法, 包括:
Figure imgf000008_0001
其中 VII步骤反应条件: 加入碳酸钾;
VIII 步骤反应条件: 加入锌粉、 氰基锌、 1, r-双 (二苯基膦)二茂铁和四三苯 基磷钯;
V步骤反应条件: 加入甲醇和甲醇钠;
VI步骤反应条件: 加入氯化铵和醋酸;
IX步骤反应条件: 加入盐酸或通入氯化氢。
2、 权利要求 1 的制备方法, 其中化合物 (9 ) :邻氟溴苄:碳酸钾的摩尔比为: 1: 1.0-1.5: 1·5~3·0。
3、 权利要求 1 的制备方法, 其中 VII步骤中反应溶剂是四氢呋喃、 Ν, Ν-二甲基甲酰胺 或二甲亚砜。
4、 权利要求 1 的制备方法, 其中 VIII步骤中反应温度为 100~150 V , 反应溶剂是 Ν,
Ν-二甲基乙酰胺。
5、 权利要求 1 的制备方法, 其中 VIII 步骤中化合物 (10) 与氰基锌的摩尔比为: 1: 0.7-1: 1.2。
6、 权利要求 1的制备方法, 其中 IX步骤中反应溶剂为甲基叔丁基醚。
PCT/CN2012/085451 2011-12-12 2012-11-28 1-(2-氟苄基)-1H -吡唑并[3,4- b]吡啶-3 -甲脒盐酸盐的合成方法 WO2013086935A1 (zh)

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US14/364,040 US8957210B2 (en) 2011-12-12 2012-11-28 Method for synthesizing 1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-formamidine hydrochloride
IN5281DEN2014 IN2014DN05281A (zh) 2011-12-12 2012-11-28
DE112012005176.9T DE112012005176B4 (de) 2011-12-12 2012-11-28 Verfahren zum Synthetisieren von 1-(2-FluorbenzyI)-1H-pyrazolo[3,4-b]pyridin-3-formamidin-hydrochlorid
IL233066A IL233066B (en) 2011-12-12 2014-06-10 Method for preparing 1-(2-fluorobenzyl)-h1-pyrazolo[b-3,4]pyridine-3-formamidine hydrochloride

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017106175A2 (en) 2015-12-14 2017-06-22 Ironwood Pharmaceuticals, Inc. USE OF sGC STIMULATORS FOR THE TREATMENT OF GASTROINTESTINAL SPHINCTER DYSFUNCTION
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491974B (zh) 2011-12-12 2013-08-07 南京药石药物研发有限公司 1-(2-氟苄基)-1H-吡唑并[3,4-b]吡啶-3-甲脒盐酸盐的合成方法
CN104086545A (zh) * 2014-07-29 2014-10-08 安徽联创药物化学有限公司 1-(2-氟苄基)-1H-吡唑并[3,4-b]吡啶-3-甲脒盐酸盐的合成方法
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1555374A (zh) * 2000-11-22 2004-12-15 新的吡啶取代的吡唑并吡啶衍生物
WO2010051561A1 (en) * 2008-11-03 2010-05-06 Chemocentryx, Inc. Compounds for the treatment of osteoporosis and cancers
CN102149712A (zh) * 2008-02-29 2011-08-10 阵列生物制药公司 吡唑并[3,4-b]吡啶Raf抑制剂
CN102191974A (zh) * 2010-03-19 2011-09-21 通用汽车环球科技运作有限责任公司 用于颗粒捕集器再生的排气压缩机旁路
WO2011149921A1 (en) * 2010-05-27 2011-12-01 Merck Sharp & Dohme Corp. Soluble guanylate cyclase activators
WO2011147810A1 (en) * 2010-05-26 2011-12-01 Bayer Pharma Aktiengesellschaft THE USE OF sGC STIMULATORS, sGC ACTIVATORS, ALONE AND COMBINATIONS WITH PDE5 INHIBITORS FOR THE TREATMENT OF SYSTEMIC SCLEROSIS (SSc).
WO2012143813A1 (en) * 2011-04-22 2012-10-26 Pfizer Inc. Pyrazolospiroketone derivatives for use as acetyl - coa carboxylase inhibitors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220570A1 (de) 2002-05-08 2003-11-20 Bayer Ag Carbamat-substituierte Pyrazolopyridine
CN101648909B (zh) * 2009-09-14 2011-10-05 南京第一农药集团有限公司 一种氯代吡啶在无配体钯催化下制备氰基吡啶的方法
DE102010021637A1 (de) 2010-05-26 2011-12-01 Bayer Schering Pharma Aktiengesellschaft Substituierte 5-Fluor-1H-Pyrazolopyridine und ihre Verwendung
CN104039784B (zh) * 2011-09-02 2017-08-22 拜耳知识产权有限责任公司 取代的增环嘧啶及其用途
CN102491974B (zh) 2011-12-12 2013-08-07 南京药石药物研发有限公司 1-(2-氟苄基)-1H-吡唑并[3,4-b]吡啶-3-甲脒盐酸盐的合成方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1555374A (zh) * 2000-11-22 2004-12-15 新的吡啶取代的吡唑并吡啶衍生物
CN102149712A (zh) * 2008-02-29 2011-08-10 阵列生物制药公司 吡唑并[3,4-b]吡啶Raf抑制剂
WO2010051561A1 (en) * 2008-11-03 2010-05-06 Chemocentryx, Inc. Compounds for the treatment of osteoporosis and cancers
CN102191974A (zh) * 2010-03-19 2011-09-21 通用汽车环球科技运作有限责任公司 用于颗粒捕集器再生的排气压缩机旁路
WO2011147810A1 (en) * 2010-05-26 2011-12-01 Bayer Pharma Aktiengesellschaft THE USE OF sGC STIMULATORS, sGC ACTIVATORS, ALONE AND COMBINATIONS WITH PDE5 INHIBITORS FOR THE TREATMENT OF SYSTEMIC SCLEROSIS (SSc).
WO2011149921A1 (en) * 2010-05-27 2011-12-01 Merck Sharp & Dohme Corp. Soluble guanylate cyclase activators
WO2012143813A1 (en) * 2011-04-22 2012-10-26 Pfizer Inc. Pyrazolospiroketone derivatives for use as acetyl - coa carboxylase inhibitors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LIANG, L. ET AL.: "Synthesis of riociguat in the treatment of pulmonary hypertension", CHINESE JOURNAL OF MEDICINAL CHEMISTRY, vol. 2, April 2011 (2011-04-01), pages 120 - 125 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017106175A2 (en) 2015-12-14 2017-06-22 Ironwood Pharmaceuticals, Inc. USE OF sGC STIMULATORS FOR THE TREATMENT OF GASTROINTESTINAL SPHINCTER DYSFUNCTION
WO2018111795A2 (en) 2016-12-13 2018-06-21 Ironwood Pharmaceuticals, Inc. Use of sgc stimulators for the treatment of esophageal motility disorders
WO2020014504A1 (en) 2018-07-11 2020-01-16 Cyclerion Therapeutics, Inc. USE OF sGC STIMULATORS FOR THE TREATMENT OF MITOCHONRIAL DISORDERS

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