SAR studies of capsazepinoid bronchodilators. Part 1: The importance of the catechol moiety and aspects of the B-ring structure
作者:Marı´a F. Dalence-Guzmán、Magnus Berglund、Staffan Skogvall、Olov Sterner
DOI:10.1016/j.bmc.2007.11.055
日期:2008.3
Capsazepine as well as its derivatives and analogues are general inhibitors of constriction of human small airways. From a systematic variation of the capsazepine structure, divided into four regions, SARs were established. This part concerns the catechol moiety of the A-ring as well as the 2,3,4,5-tetrahydro-1H-2-azepine moiety (the B-ring) of capsazepine. It is revealed that a conformational constrain (as a fused ring) is important and that compounds with a six-membered B-ring (as a 1,2,3,4-tetrahydroisoquinoline) in general are more potent than the corresponding isoindoline, 2,3,4,5 -tetrahydro-1H-2-benzazepi ne and 2,3,4,5-tetrahydro-1H-3-benzazepine derivatives. (C) 2007 Elsevier Ltd. All rights reserved.