最近显示,胞外核苷酸焦磷酸酶/磷酸二酯酶-1(NPP1)促进主动脉瓣的矿化,因此,其抑制作用是一个重要的目标。喹唑啉-4-哌啶磺酰胺化合物(QPS1)已被描述为NPP1的特异性和非竞争性抑制剂。我们在此报告了使用QPS1作为先导化合物的新型喹唑啉-4-哌啶磺酰胺类似物的合成和体外抑制研究。在制备的26种衍生物中,发现有四种化合物 对人NPP1的K i <105 nM。
Synthesis and biological evaluation of 2-styrylquinazolin-4(3H)-ones, a new class of antimitotic anticancer agents which inhibit tubulin polymerization
摘要:
A novel series of 2-styrylquinazolin-4(3H-ones which inhibited tubulin polymerization and the growth of L1210 murine leukemia cells was discovered. Extensive structure-activity relationship studies suggest that the entire quinazolinone structure was required, but activity was further enhanced by halide or small hydrophobic substituents at position 6. These analogues did not substantially interfere with the binding of radiolabeled colchicine, vinblastine, or GTP to tubulin and weakly stimulated GTP hydrolysis uncoupled from polymerization. Several analogues have shown in vivo tumor growth inhibitory activity in the L1210 leukemia model, with the lead compound 5o exhibiting good antitumor activity against murine solid tumors as well as human tumor xenografts.