Quinazoline antifolate thymidylate synthase inhibitors: bridge modifications and conformationally restricted analogs in the C2-methyl series
作者:Peter R. Marsham、Ann L. Jackman、Anthony J. Hayter、Melanie R. Daw、Jayne L. Snowden、Brigid M. O'Connor、Joel A. M. Bishop、A. Hilary Calvert、Leslie R. Hughes
DOI:10.1021/jm00111a042
日期:1991.7
N10 bridge has been replaced by the reversed N9,C10 unit. This series was extensively studied by incorporating further substituents at N9 and C10 as well as by modifications to the p-aminobenzoate ring. The C2-methylquinazoline analogues 29, 30, and 31 containing the methyleneoxa, methylenethia, and thia bridge units were also synthesized. In general these isosteric replacements of the bridge unit
已经制备了几种基于C2-甲基喹唑啉的抗叶酸剂,其中C9,N10桥被反向的N9,C10单元代替。通过在N9和C10处引入其他取代基以及对对氨基苯甲酸酯环的修饰,对该系列进行了广泛的研究。还合成了含有亚甲基氧杂,亚甲基硫杂和硫杂桥单元的C 2-甲基喹唑啉类似物29、30和31。通常,亲本C 2-甲基-N 10-炔丙基喹唑啉抗叶酸2中桥单元的这些等排替代物作为分离的胸苷酸合酶(TS)抑制剂的效力要低得多,但几种至少与培养中的L1210细胞生长抑制剂一样有效。对氨基苯甲酸酯环与双环系统75和76的融合也降低了对TS的活性,但又产生了高度细胞毒性的化合物。