Structure−Antitussive Activity Relationships of Naltrindole Derivatives. Identification of Novel and Potent Antitussive Agents
作者:Satoshi Sakami、Masayuki Maeda、Koji Kawai、Takumi Aoki、Kuniaki Kawamura、Hideaki Fujii、Ko Hasebe、Mayumi Nakajima、Takashi Endo、Shinya Ueno、Tsuyoshi Ito、Junzo Kamei、Hiroshi Nagase
DOI:10.1021/jm701440h
日期:2008.8.1
of the most reliable centrally acting antitussive drugs, has micro agonist activity and thus the same side effects as morphine, e.g., constipation, dependency, and respiratory depression. Because NTI is a delta opioid antagonist, its derivatives have potential as highly potent antitussives, free from the mu opioid agonist side effects. We attempted to optimize the NTI derivatives to develop novel antitussive
我们以前曾报道过纳曲酮(NTI)在大鼠模型中具有镇咳作用,NTI是一种典型的阿片类阿片受体拮抗剂。腹膜内和经口注射的NTI的ED50值分别为104微克/千克和1840微克/千克,与可待因相当。可待因是最可靠的中枢镇咳药之一,具有微激动剂活性,因此与吗啡具有相同的副作用,例如便秘,依赖性和呼吸抑制。由于NTI是一种δ阿片类拮抗剂,因此其衍生物具有作为强效镇咳药的潜力,并且没有mu阿片类激动剂的副作用。我们尝试优化NTI衍生物以开发新型镇咳药。在研究烷基取代的NTI衍生物的结构-镇咳活性关系的基础上,我们设计了具有额外环稠合结构的NTI衍生物。作为临床候选药物,我们确定了一种强效的新化合物(5R,9R,13S,14S)-17-环丙基甲基-6,7-二氢-4,5-环氧-5',6'-二氢-3-甲基氧-4'H-吡咯并[3,2,1-ij]喹啉基[2',1':6,7]吗啡喃-14-ol(5b)甲磺酸酯(TRK-850)即使口服也有效(