4,6-Dimethyl-8-(6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-4H-benzo[1,4]oxazin-3-one | 114602-98-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶嗪类
• 英文名称: 4,6-Dimethyl-8-(6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-4H-benzo[1,4]oxazin-3-one
• 英文别名: 4,6-dimethyl-8-(6-oxo-4,5-dihydro-1H-pyridazin-3-yl)-1,4-benzoxazin-3-one
• CAS: 114602-98-1
• 化学式: C₁₄H₁₅N₃O₃
• 分子量: 273.291
• InChiKey: MWNLJDWMPXPVDS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  71
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  4-(4,6-Dimethyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-8-yl)-4-oxo-butyric acid methyl ester 在 肼 作用下， 以 乙醇 为溶剂， 生成 4,6-Dimethyl-8-(6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-4H-benzo[1,4]oxazin-3-one
  参考文献：
  名称：

  6-Benzoxazinylpyridazin-3-ones: potent, long-acting positive inotrope and peripheral vasodilator agents

  摘要：

  A series of 6-benzoxazinylpyridazin-3-ones was prepared and evaluated for inhibition of cardiac phosphodiesterase (PDE) fraction III in vitro and for positive inotropic activity in vivo. 6-[3,4-Dihydro-3-oxo-1,4(2H)-benzoxazin-7-yl]-2,3,4,5-tetrahydro-5 - methylpyridazin-3-one (bemoradan) was found to be an extremely potent and selective inhibitor of canine PDE fraction III and a long-acting, potent, orally active inotropic vasodilator agent in various canine models. Additional benzoxazin-6-yl and -8-yl compounds were also prepared. Altering the pyridazinone substitution from the 6-position to the 7-position produced a 14-fold increase in the iv cardiotonic potency (ED50) from 77 to 5.4 micrograms/kg while substitution at the 8-position reduced potency. Methyl substitution at various sites in the molecule was also examined. Positive inotropic activity was maintained for between 8 and 24 h after a single oral dose (100 micrograms/kg) of bemoradan in dogs, thus making it one of the most potent and long-acting orally effective inotropes yet described. Bemoradan is currently under development as a cardiotonic agent for use in the management of congestive heart failure.

  DOI：

  10.1021/jm00163a061

文献信息

• Cyclic compounds
  申请人：Gyorkos Charles Albert

  公开号：US20070179165A1

  公开（公告）日：2007-08-02

  There is provided a CRF receptor antagonist comprising a compound of the formula (I): A-W—Ar  (I) wherein, A is a group represented by the formula (A1) or (A2): (wherein, ring Aa is a 5- or 6-membered ring which may be further substituted; ring Ab is a 5- or 6-membered ring which may be further substituted; ring Ac is a 5- or 6-membered ring which may be substituted; R 1 is optionally substituted alkyl, substituted amino, substituted hydroxy, etc.; X is carbonyl, —O—, —S—, etc.; Y 1 , Y 2 and Q are independently optionally substituted carbon or nitrogen; is a single or double bond); W is a bond, optionally substituted methylene, optionally substituted imino, —O—, —S—, etc.; Ar is optionally substituted aryl or optionally substituted heteroaryl; or a salt thereof or a prodrug thereof.

  提供了一种CRF受体拮抗剂，包括式(I)的化合物：A-W-Ar(I)，其中，A是由式(A1)或(A2)表示的基团：（其中，环Aa是一个可以进一步取代的5-或6成员环；环Ab是一个可以进一步取代的5-或6成员环；环Ac是一个可以取代的5-或6成员环；R1是可选的取代基的烷基，取代的氨基，取代的羟基等；X是羰基，-O-，-S-等；Y1，Y2和Q独立地是可选取代的碳或氮；是单键或双键）；W是键，可选取代的亚甲基，可选取代的亚胺基，-O-，-S-等；Ar是可选取代的芳基或可选取代的杂芳基；或其盐或前药。
• 6-Benzoxazinyl- and 6-benzothiazinyl-2,3,4,5-tetrahydropyridazin-3-ones
  申请人：ORTHO PHARMACEUTICAL CORPORATION

  公开号：EP0272914A2

  公开（公告）日：1988-06-29

  The synthesis of benzoxazinyl- and benzothiazinylpyridazinone compounds is described. The novel compounds are cardiotonic agents and inhibitors of phosphodiesterase. In addition, the compounds are useful as smooth muscle relaxants and bronchodilators.

  介绍了苯并恶嗪基和苯并噻嗪基哒嗪酮化合物的合成。 这些新型化合物是强心剂和磷酸二酯酶抑制剂。 此外，这些化合物还可用作平滑肌松弛剂和支气管扩张剂。
• Heterocyclic CRF receptor antagonists
  申请人：Takeda Pharmaceutical Company Limited

  公开号：EP2522670A1

  公开（公告）日：2012-11-14

  There is provided a CRF receptor antagonist comprising a compound of the formula (I) : A-W-Ar wherein, A is a group represented by the formula (A2), wherein ring Ab is a 5- or 6- membered ring which may be further substituted in addition to R1; ring Ac is a 5- or 6- membered ring which may be substituted; R1 is an optionally substituted hydrocarbyl, a substituted amino, an optionally substituted cyclic amino, a substituted hydroxy, a substituted sulfanyl, an optionally substituted sulfinyl, or an optionally substituted sulfonyl; X is carbonyl, -O-, -S-, -SO-, or -SO2-; Y1, Y2 and Q are independently optionally substituted carbon or nitrogen; ... is a single or double bond; W is a bond, an optionally substituted methylene, an optionally substituted ethylene, an optionally substituted imino, -O-, -S-, -SO-, or -SO2-; Ar is an optionally substituted aryl or an optionally substituted heteroaryl; or a salt thereof or a prodrug thereof.

  本发明提供了一种 CRF 受体拮抗剂，包括式 (I) ：A-W-Ar 其中，A 是由式(A2)代表的基团，其中环 Ab 是除 R1 之外可进一步取代的 5 或 6 分子环；环 Ac 是可被取代的 5 或 6 分子环；R1 是任选取代的烃基、取代的氨基、任选取代的环氨基、取代的羟基、取代的硫基、任选取代的亚磺酰基或任选取代的磺酰基； X是羰基、-O-、-S-、-SO-或-SO2-；Y1、Y2和Q独立地是任选取代的碳或氮；...是单键或双键；W是键、任选取代的亚甲基、任选取代的亚乙基、任选取代的亚氨基、-O-、-S-、-SO-或-SO2-；Ar是任选取代的芳基或任选取代的杂芳基；或其盐或其原药。
• CYCLIC COMPOUNDS
  申请人：Takeda Pharmaceutical Company Limited

  公开号：EP1732541A2

  公开（公告）日：2006-12-20
• EP1732541A4
  申请人：——

  公开号：EP1732541A4

  公开（公告）日：2008-03-05