Novel Malonamide Derivatives as .ALPHA.v.BETA.3 Antagonists. Syntheses and Evaluation of 3-(3-Indolin-1-yl-3-Oxopropanoyl)aminopropanoic Acids on Vitronectin Interaction with .ALPHA.v.BETA.3.
作者:Shinya NAGASHIMA、Seijiro AKAMATSU、Eiji KAWAMINAMI、Souichirou KAWAZOE、Tetsuro OGAMI、Yuzo MATSUMOTO、Minoru OKADA、Ken-Ichi SUZUKI、Shin-Ichi TSUKAMOTO
DOI:10.1248/cpb.49.1420
日期:——
integrin alphavbeta3 antagonists, we selected SC65811 and its guanidine analogue (1) as lead compounds. Modification of the glycine part of SC65811 led to a new series of malonamide derivatives that exhibited alphavbeta3 inhibitory activity. Among them, (R,S)-3-[3-[6-(3-benzylureido)indolin-1-yl]-3-oxopropanoylamino]-3- (pyridin-3-yl)propanoic acid (43a) showed not only potent activity with an IC50
为了找到新的整联蛋白αvbeta3拮抗剂,我们选择了SC65811及其胍类似物(1)作为先导化合物。SC65811甘氨酸部分的修饰导致了一系列新的丙二酰胺衍生物,这些衍生物表现出alphavbeta3抑制活性。其中,(R,S)-3- [3- [6-(3-苄基脲基)吲哚-1-基] -3-氧代丙酰基氨基] -3-(吡啶-3-基)丙酸(43a)未显示相对于alphaIIbbeta3,alpha5beta1和alphavbeta5,IC50值仅为3.0 nM的有效活性,而且对alphavbeta3的选择性也很好,IC50值分别为19,000、11,000和14 nM。此外,优化43a导致最有效的alphavbeta3拮抗剂(R,S)-3-(3- [6-[(4,5-二氢-1H-咪唑-2-基)氨基]吲哚-1-基] -3-氧代丙酰基氨基)-3-(喹啉-3-基)丙酸(431),IC50值为0.42 nM。