The disclosure provides a series of 2-oxoamides based on dipeptides and pseudodipeptides, which were synthesized and their activities toward two human intracellular phospholipases A2 (GIVA CPLA
2
and GVIA 1PLA
2
) and one human secretory phospholipase A2 (GVsPLA
2
) were evaluated. Derivatives containing a free carboxyl group are selective GIVA cPLA
2
inhibitors. A derivative based on the ethyl ester of an ether pseudodipeptide is the first 2-oxoamide, which preferentially inhibits GVIA iPLA
2
. The effect of 2-oxoamides on the generation of arachidonic acid from RAW 264.7 macrophages was also studied. It was found that selective GIVA cPLA
2
inhibitors preferentially inhibited cellular arachidonic acid release; in which one pseudodipeptide gave an IC50 value of 2 μM.
该披露提供了一系列基于二肽和
假二肽的2-氧代酰胺,这些化合物已被合成,并评估了它们对两种人类细胞内
磷脂酶A2(GIVA
CPLA2和GVIA 1P
LA2)以及一种人类分泌型
磷脂酶A2(GVsP
LA2)的活性。含有自由羧基的衍
生物是选择性的GIVA
CPLa href=https://www.molaid.com/MS_77825 target="_blank">LA2
抑制剂。一种基于乙酰化
假二肽的2-氧代酰胺是首个优先抑制GVIA iP
LA2的化合物。还研究了2-氧代酰胺对RAW 264.7巨噬细胞中
花生四烯酸生成的影响。发现选择性的GIVA
CPLa href=https://www.molaid.com/MS_77825 target="_blank">LA2
抑制剂优先抑制细胞
花生四烯酸释放;其中一个
假二肽给出了2μM的IC50值。