Syntheses and Anti-inflammatory Activity of Novel Oximes and O-Acyloximes.
作者:Toyoshi KATAGI、Hiromi KATAOKA、Koichi TAKAHASI、Toshiyuki FUJIOKA、MASARU KUNITOMO、Yu YAMAGUCHI、Motohatsu FUJIWARA、Takeshi INOI
DOI:10.1248/cpb.40.2419
日期:——
Novel oximes were prepared from the corresponding aldehyde or ketone in the usual way, and a number of oxime esters, O-lauroyl, O-2-pyridinecarbonyl, O-nicotinoyl and O-isonicotinoyl oximes were sgnthesized by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimede (EDCI)-4-dimethylaminopyridine (DMAP) method or a mixed anhydride method, in our search for potent anti-inflammatory compounds. The anti-inflammatory activity of these compounds was assessed by the carrageenan-induced paw edema assay in rats. The oximes (4, 5, and 13), O-lauroyloxime 1L, O-nicotinoyloximes (1N, 2N, 3N, and 4N), O-isonicotinoyloxime 1I, and O-2-pyridinecarbonyloxime 7P showed higher anti-inflammatory potency than aspirin, a prostaglandin cyclooxygenase inhibitor.
以相应的醛或酮为原料,按照常规方法合成了多种肟酯、O-月桂酰肟、O-2-吡啶羰基、O-烟酰肟和O-异烟酰肟,其中1-乙基-3-( 3-二甲氨基丙基)碳二亚胺(EDCI)-4-二甲氨基吡啶(DMAP)法或混合酸酐法,在我们寻找有效的抗炎化合物的过程中。通过角叉菜胶诱导的大鼠爪水肿测定来评估这些化合物的抗炎活性。肟(4、5 和 13)、O-月桂酰肟 1L、O-烟酰肟(1N、2N、3N 和 4N)、O-异烟酰肟 1I 和 O-2-吡啶羰基肟 7P 显示出比阿司匹林更高的抗炎效力,一种前列腺素环氧合酶抑制剂。