Angiotensin-converting enzyme inhibitors: importance of the amide carbonyl of mercaptoacyl amino acids for hydrogen bonding to the enzyme
摘要:
A series of mercaptoacyl amino acids and related compounds was synthesized and evaluated for inhibition of angiotensin-converting enzyme (ACE) in order to determine the nature and importance of the putative interaction between ACE and the amide moiety of inhibitors such as captopril (3-mercapto-2-methylpropanoyl-L-proline). It was concluded that the interaction involves a hydrogen bond from a donor site on ACE to the oxygen of the amide carbonyl. Compounds in which the amide moiety is replaced by other groups (ester, ketone, sulfonamide) capable of accepting a hydrogen bond are effective inhibitors, but compounds in which only the geometrical features of the amide are retained are ineffective inhibitors. The presence of an NH group is not necessary for effective inhibition. The activity of a series of mercaptoacyl cycloalkyl carboxylic acids parallels the activity of the isosteric series of mercaptoacyl imino acids.
A series of mercaptoacylamino acids was synthesized and screened as angiotensin I-converting enzyme inhibitors. The inhibitory activities of these compounds were compared with that of (2S)-1-[(2S)-3-mercapto-2-methylpropanoyl] proline. The structureactivity relationship of the compounds is discussed.
Compounds for alleviating angiotensin related hypertension
申请人:E. R. Squibb & Sons, Inc.
公开号:US04339600A1
公开(公告)日:1982-07-13
Compounds for alleviating or reducing angiotensin related hypertension in hypertensive mammals comprising angiotensin converting enzyme inhibitors selected from a group of mercaptoacyl aminoacids.
A method for alleviating or reducing angiotensin related hypertension in hypertensive mammals comprises administering to such hypertensive mammals an effective amount of an angiotensin converting enzyme inhibitor selected from a group of mercaptoacyl aminoacids.
Compounds and method for alleviating angiotensin related hypertension
申请人:E. R. Squibb & Sons, Inc.
公开号:US04053651A1
公开(公告)日:1977-10-11
A method for alleviating or reducing angiotensin related hypertension in hypertensive mammals comprises administering to such hypertensive mammals an effective amount of an angiotensin converting enzyme inhibitor selected from a group of mercaptoacyl aminoacids.