Sulfur-containing acylamino acids. II. Syntheses and angiotensin I converting enzyme-inhibitory activites of N-mercaptoalkanoyl-S-ethyl-L-cysteine.
作者:TAKETOSHI KOMORI、KATSUMI ASANO、YASUTO SASAKI、HIROMI HANAI、SHIRO MORIMOTO、MIKIO HORI
DOI:10.1248/cpb.35.2388
日期:——
N-Mercaptoalkanoyl derivatives of sulfur-containing amino acids were synthesized as candidate angiotensin I converting enzyme (ACE) inhibitors. Among them, N-[3-mercapto-2- (4-methoxybenzyl) propanoyl] -S-ethyl-L-cysteine (5d) was found to be the most potent inhibitor of ACE, with an IC50 value of 0.045μM. The maximum hypotensive effect of this compound was almost equal to that of captopril in anesthetized rats.
含有硫氨基酸的N-巯基烷酰基衍生物被合成作为候选血管紧张素I转化酶(ACE)抑制剂。其中,N-[3-巯基-2-(4-甲氧基苄基)丙酰基]-S-乙基-L-半胱氨酸(5d)被发现是最强效的ACE抑制剂,其IC50值为0.045μM。该化合物在麻醉大鼠中的最大降压效果几乎与卡托普利相当。