西地那非杂质 | 139756-26-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡唑并嘧啶类
• 中文名称: 西地那非杂质
• 英文名称: 5-(2-hydroxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
• 英文别名: 5-(2-hydroxyphenyl)-1-methyl-3-n.propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one；1,6-Dihydro-5-(2-hydroxyphenyl)-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one；5-(2-hydroxyphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one
• CAS: 139756-26-6
• 化学式: C₁₅H₁₆N₄O₂
• 分子量: 284.318
• InChiKey: LWPFLYVDEFNFBW-UHFFFAOYSA-N

物化性质

• 溶解度：
  可溶于二氯甲烷；甲醇；二甲基亚砜；

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  79.5
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  西地那非杂质 在 氯磺酸 作用下， 以75%的产率得到去甲哌嗪基去乙基西地那非磺酰氯
  参考文献：
  名称：

  Method of treating a patient having precancerous lesions with phenyl purinone derivatives

  摘要：

  苯基嘌呤酮衍生物对于治疗患有癌前病变的患者非常有用。这些化合物还可用于抑制肿瘤细胞的生长。

  公开号：

  US06200980B1
• 作为产物：
  描述：

  4-(2-hydroxybenzamido)-1-methyl-3-n.propylpyrazole-5-carboxamide 在 sodium hydroxide 作用下， 以 乙醇 、 水 为溶剂， 生成 西地那非杂质
  参考文献：
  名称：

  Sildenafil (VIAGRATM), a potent and selective inhibitor of type 5 cGMP phosphodiesterase with utility for the treatment of male erectile dysfunction

  摘要：

  5-(2'-Alkoxyphenyl)pyrazolo[4,3-d]pyrimidin-7-ones, and in particular our preferred compound, sildenafil (VIAGRA(TM)), discovered through a rational drug design programme, are potent and selective inhibitors of the type 5 cGMP phosphodiesterase from both rabbit platelets and human corpus cavernosum. Sildenafil is currently in the clinic for the oral treatment of male erectile dysfunction. Copyright (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/0960-894x(96)00323-x

文献信息

• An improved process for preparing a therapeutically active pyrazolopyrimidinone derivative
  申请人：Orchid Chemicals & Pharmaceuticals Ltd.

  公开号：EP1002798A1

  公开（公告）日：2000-05-24

  An improved process which allows to obtain 5-[2-ethoxy-5-(4-methylpiperazin-1-ylsulphonyl)phenyl]-1-methyl-3-n.propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one, also known with the generic name sildenafil, in pure form and very good yield and further demontrated to be economically advantageous when compared to the known processes.

  一种改进的工艺，可以纯度高且产率很好地获得5-[2-乙氧基-5-(4-甲基哌嗪-1-基磺酰基)苯基]-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并[4,3-d]嘧啶-7-酮，通用名为西地那非，与已知工艺相比，经济上更具优势。
• Pyrazolopyrimidinone antianginal agents
  申请人：Pfizer Inc.

  公开号：US05250534A1

  公开（公告）日：1993-10-05

  Compounds of the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, C.sub.3 -C.sub.5 cycloalkyl or C.sub.1 -C.sub.3 perfluoroalkyl; R.sup.2 is H, C.sub.1 -C.sub.6 alkyl optionally substituted by OH, C.sub.1 -C.sub.3 alkoxy or C.sub.3 -C.sub.6 cycloalkyl, or C.sub.1 -C.sub.3 perfluoroalkyl; R.sup.3 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.6 perfluoroalkyl or (C.sub.3 -C.sub.6 cycloalkyl)C.sub.1 -C.sub.6 alkyl; R.sup.4 taken together with the nitrogen atom to which it is attached completes a pyrrolidinyl, piperidino, morpholino, or 4-N-(R.sup.6)-piperazinyl group; R.sup.5 is H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 alkoxy, NR.sup.7 R.sup.8, or CONR.sup.7 R.sup.8 ; R.sup.6 is H, C.sub.1 -C.sub.6 alkyl, (C.sub.1 -C.sub.3 alkoxy) C.sub.2 - C.sub.6 alkyl, hydroxy C.sub.2 -C.sub.6 alkyl, (R.sup.7 R.sup.8 N)C.sub.2 -C.sub.6 alkyl, (R.sup.7 R.sup.8 NCO)C.sub.1 -C.sub.6 alkyl, CONR.sup.7 R.sup.8, CSNR.sup.7 R.sup.8 or C(NH)NR.sup.7 R.sup.8 ; R.sup.7 and R.sup.8 are each independently H, C.sub.1 -C.sub.4 alkyl, (C.sub.1 -C.sub.3 alkoxy)C.sub.2 -C.sub.4 alkyl or hydroxy C.sub.2 -C.sub.4 alkyl; and pharmaceutically acceptable salts thereof, are selective cGMP PDE inhibitors useful in the treatment of cardiovascular disorders such as angina, hypertension, heart failure and atherosclerosis.

  该化合物的结构式为：##STR1## 其中R.sup.1为H，C.sub.1 -C.sub.3烷基，C.sub.3 -C.sub.5环烷基或C.sub.1 -C.sub.3全氟烷基；R.sup.2为H，C.sub.1 -C.sub.6烷基，可以选择性地被OH，C.sub.1 -C.sub.3烷氧基或C.sub.3 -C.sub.6环烷基，或C.sub.1 -C.sub.3全氟烷基取代；R.sup.3为C.sub.1 -C.sub.6烷基，C.sub.3 -C.sub.6烯基，C.sub.3 -C.sub.6炔基，C.sub.3 -C.sub.7环烷基，C.sub.1 -C.sub.6全氟烷基或(C.sub.3 -C.sub.6环烷基)C.sub.1 -C.sub.6烷基；R.sup.4与其连接的氮原子一起形成吡咯啉基、哌啶基、吗啉基或4-N-(R.sup.6)-哌嗪基；R.sup.5为H，C.sub.1 -C.sub.4烷基，C.sub.1 -C.sub.3烷氧基，NR.sup.7 R.sup.8，或CONR.sup.7 R.sup.8；R.sup.6为H，C.sub.1 -C.sub.6烷基，(C.sub.1 -C.sub.3烷氧基)C.sub.2 - C.sub.6烷基，羟基C.sub.2 -C.sub.6烷基，(R.sup.7 R.sup.8 N)C.sub.2 -C.sub.6烷基，(R.sup.7 R.sup.8 NCO)C.sub.1 -C.sub.6烷基，CONR.sup.7 R.sup.8，CSNR.sup.7 R.sup.8或C(NH)NR.sup.7 R.sup.8；R.sup.7和R.sup.8各自独立地为H，C.sub.1 -C.sub.4烷基，(C.sub.1 -C.sub.3烷氧基)C.sub.2 -C.sub.4烷基或羟基C.sub.2 -C.sub.4烷基；以及其药学上可接受的盐，是用于治疗心血管疾病如心绞痛、高血压、心力衰竭和动脉粥样硬化的选择性cGMP PDE抑制剂。
• Intermediates useful in the synthesis of pyrazolopyrimidinone
  申请人：Pfizer Inc.

  公开号：US05719283A1

  公开（公告）日：1998-02-17

  Compounds of the formula ##STR1## wherein R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, C.sub.3 -C.sub.5 cycloalkyl or C.sub.1 -C.sub.3 perfluoroalkyl; R.sup.2 is H, C.sub.1 -C.sub.6 alkyl optionally substituted by OH, C.sub.1 -C.sub.3 alkoxy or C.sub.3 -C.sub.6 cycloalkyl, or C.sub.1 -C.sub.3 perfluoroalkyl; R.sup.3 is H, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.6 perfluoroalkyl or (C.sub.3 -C.sub.6 cycloalkyl)C.sub.1 -C.sub.6 alkyl; and Y is chloro, bromo, or fluoro. The above compounds are intermediates useful in the synthesis of certain pyrazolopyrimidinones which inhibit cyclic guanosine 3', 5'-monophosphate phosphodiesterase.

  化合物的公式为##STR1##其中R.sup.1是H，C.sub.1-C.sub.3烷基，C.sub.3-C.sub.5环烷基或C.sub.1-C.sub.3全氟烷基；R.sup.2是H，C.sub.1-C.sub.6烷基，可选择性地被OH，C.sub.1-C.sub.3烷氧基或C.sub.3-C.sub.6环烷基或C.sub.1-C.sub.3全氟烷基取代，或者C.sub.1-C.sub.3全氟烷基；R.sup.3是H，C.sub.1-C.sub.6烷基，C.sub.3-C.sub.6烯基，C.sub.3-C.sub.6炔基，C.sub.3-C.sub.7环烷基，C.sub.1-C.sub.6全氟烷基或(C.sub.3-C.sub.6环烷基)C.sub.1-C.sub.6烷基；Y是氯，溴或氟。上述化合物是合成某些嘧啶并嘧啶酮的中间体，这些嘧啶并嘧啶酮可以抑制环鸟苷3'，5'-单磷酸酯酶。
• Iodine Catalyzed Oxidative Synthesis of Quinazolin-4(3<i>H</i>)-ones and Pyrazolo[4,3-<i>d</i>]pyrimidin-7(6<i>H</i>)-ones via Amination of sp³ C–H Bond
  作者：Shabber Mohammed、Ram A. Vishwakarma、Sandip B. Bharate

  DOI：10.1021/acs.joc.5b00989

  日期：2015.7.2

  Molecular iodine catalyzed oxidative coupling of 2-aminobenzamides with aryl methyl ketones produced 2-aryl quinazolin-4(3H)-ones. The reaction performed well in the absence of any metal or ligand. The quantity of iodine played a very crucial role in this transformation in order to selectively get 2-aryl quinazolin-4(3H)-ones. The utility of this protocol for synthesis of pyrazolo[4,3-d]pyrimidin-7(6H)-ones including a key intermediate involved in sildenafil synthesis has also been demonstrated.
• US5250534A
  申请人：——

  公开号：US5250534A

  公开（公告）日：1993-10-05