Synthesis and analgesic effects of N-[3-[(hydroxyamino)carbonyl]-1-oxo-2(R)-benzylpropyl]-L-isoleucyl-L-leucine, a new potent inhibitor of multiple neurotensin/neuromedin N degrading enzymes
作者:Sylvie Doulut、Isabelle Dubuc、M. Rodriguez、F. Vecchini、H. Fulcrand、H. Barelli、F. Checler、E. Bourdel、A. Aumelas
DOI:10.1021/jm00062a009
日期:1993.5
and NN from slices of mice hypothalamus depolarized with potassium. In various assays commonly used to select analgesics, e.g. hot-plate test, tail-flick test, acetic acid-induced writhing test, in mice, compound 6a proved to be potent when intracerebroventricularly (icv) injected. The analgesic effects observed were totally (hot-plate test) or largely (tail-flick test) reversed by the opioid antagonist
N- [3-[(羟氨基)羰基] -1-氧代-2(R)-苄基丙基] -L-异亮氨酰-L-亮氨酸(JMV-390-1,6a)的合成,基于描述了神经降压素(NT)和神经调节素N(NN)共有的C端序列。该化合物在体外具有主要NT / NN降解酶(例如内肽酶24.16,内肽酶24.15,内肽酶24.11和亮氨酸氨基肽酶(IV-S型)的完全抑制剂)的纳摩尔浓度范围(IC50为30至60 nM)。 。发现化合物6a增加了用钾去极化的小鼠下丘脑切片中NT和NN的内源性恢复。在通常用于选择镇痛药的各种试验中,例如热板试验,甩尾试验,乙酸诱导的扭体试验,在小鼠的脑室内(icv)注射时,化合物6a被证明是有效的。所观察到的镇痛作用被阿片类药物纳曲酮完全(热板试验)或大部分(甩尾试验)逆转。此外,发现icv注射化合物6a(10微克/小鼠)可显着增强NT或NN的低温效应。