Novel Non-Peptide Fibrinogen Receptor Antagonists. 1. Synthesis and Glycoprotein IIb-IIIa Antagonistic Activities of 1,3,4-Trisubstituted 2-Oxopiperazine Derivatives Incorporating Side-Chain Functions of the RGDF Peptide
作者:Hirosada Sugihara、Hideto Fukushi、Toshio Miyawaki、Yumi Imai、Zen-ichi Terashita、Masaki Kawamura、Yukio Fujisawa、Shunbun Kita
DOI:10.1021/jm970235u
日期:1998.2.1
Based on the lead tetrapeptide RGDF, two possible non-peptide glycoprotein (GP) IIb-IIIa antagonists possessing an (S)-2-oxopiperazine-3-acetic acid moiety as a scaffold incorporating the indispensable Asp fragment were prepared, and (S)-4-[[trans-[4-(guanidinomethyl)-cyclohexyl]carbonyl]glycyl]-2- oxopiperazine-1,3-diacetic acid, 1a, was identified as a potential lead. A series of 3-substituted 2
基于四肽铅RGDF,制备了两种可能的非肽糖蛋白(GP)IIb-IIIa拮抗剂,这些拮抗剂具有(S)-2-氧氧哌嗪-3-乙酸部分作为包含必不可少的Asp片段的支架,并且(S) -4-[[反式-[4-(胍基甲基)-环己基]羰基]甘氨酰] -2-氧哌嗪-1,3-二乙酸1a被鉴定为潜在的铅。制备一系列在4位带有Arg-Gly等效物的3-取代的2-氧-哌嗪-1-乙酸,并评估其防止血小板凝集的能力以及与从中纯化的GP IIb-IIIa受体的结合亲和力。人HEL细胞。(S)-4-[(4-A氨基苯甲酰基)甘氨酰] -3-[(甲氧羰基)甲基] -2-氧氧哌嗪-1-乙酸9(TAK-029)以IC50值抑制体外人血小板聚集的0。03 microM和GP IIb-IIIa-纤维蛋白原结合,IC50值为0.49 nM。[4-(2-氨基乙基)苯甲酰基]甘氨酰基衍生物26显示出与9的活性相当的活性(IC 50 =0.0