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.
作者:Shyamal Kanti Bera、Rosalin Bhanja、Prasenjit Mal
DOI:10.3762/bjoc.18.64
日期:——
that DDQ can be used to synthesize 1,2-disubstitutedbenzimidazoles and quinazolin-4(3H)-ones via the intra- and intermolecular C–N coupling reaction under solvent-free mechanochemical (ball milling) conditions. In the presence of DDQ, the intramolecularC(sp2)–H amidation of N-(2-(arylideneamino)phenyl)-p-toluenesulfonamides leads to 1,2-disubstitutedbenzimidazoles and the one-pot coupling of 2-aminobenzamides
2,3-二氯-5,6-二氰基-1,4-苯醌(DDQ)是一种众所周知的氧化剂。在此,我们报道DDQ可用于在无溶剂机械化学(球磨)条件下通过分子内和分子间C-N偶联反应合成1,2-二取代苯并咪唑和喹唑啉-4(3 H )-酮。在 DDQ 存在下, N -(2-(亚芳基氨基)苯基)-对甲苯磺酰胺的分子内 C(sp 2 )–H 酰胺化生成 1,2-二取代苯并咪唑,以及 2-氨基苯甲酰胺与芳基/烷基醛以高产率产生取代的喹唑啉-4(3 H )-酮衍生物。