Potent Platelet-Derived Growth Factor-.BETA. Receptor (PDGF-.BETA.R) Inhibitors: Synthesis and Structure-Activity Relationships of 7-[3-(Cyclohexylmethyl)ureido]-3-{1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl}quinoxalin-2(1H)-one Derivatives
作者:Katsuyuki Aoki、Tatsuhiro Obata、Yosuke Yamazaki、Yoshikazu Mori、Hiroko Hirokawa、Jun-ichi Koseki、Tomohisa Hattori、Kazuaki Niitsu、Shuichi Takeda、Masaki Aburada、Ken-ichi Miyamoto
DOI:10.1248/cpb.55.255
日期:——
previously that 7-[3-(cyclohexylmethyl)ureido]-3-1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl}quinoxalin-2(1H)-one (7d-6) has considerable potency as a PDGF inhibitor. This compound showed potent inhibitory activity in a PDGF-induced CPA (Cell Proliferation Assay) and APA (Auto-Phosphorylation Assay) (IC50 = 0.05 micromol/l in CPA, 0.03 micromol/l in APA). Therefore, we tried to develop a novel and effective
我们先前发现7- [3-(环己基甲基)脲基] -3- 1-甲基-1H-吡咯并[2,3-b]吡啶-3-基}喹喔啉-2(1H)-一(7d-6 )作为PDGF抑制剂具有相当大的潜力。该化合物在PDGF诱导的CPA(细胞增殖测定)和APA(自磷酸化测定)中表现出有效的抑制活性(C50中的IC50 = 0.05 micromol / l,APA中的0.03 micromol / l)。因此,我们试图通过优化其一系列衍生物来开发新颖有效的PDGF-βR抑制剂。我们发现三氟乙酸(TFA)催化吡咯并[2,3-b]吡啶与喹喔啉-2-酮的偶联在温和的氧化条件下有效地进行了氧化锰(IVO)的原位反应,因此该方法得以应用准备一系列衍生物。对新合成衍生物进行体外筛选的结果表明,化合物7d-9具有强效性(CPA中的IC50 = 0.014 micromol / l,APA中的0.007 micromol / l)和