Quinazoline-antifolate thymidylate synthase inhibitors: benzoyl ring modifications in the C2-methyl series
作者:Peter R. Marsham、Ann L. Jackman、John Oldfield、Leslie R. Hughes、Timothy J. Thornton、Graham M. F. Bisset、Brigid M. O'Connor、Joel A. M. Bishop、A. Hilary Calvert
DOI:10.1021/jm00173a026
日期:1990.11
The synthesis of nine new 2-methyl-10-propargylquinazoline antifolates with substituents in the p-aminobenzoyl ring is described. In general the synthetic route involved the coupling of the appropriate ring-substituted diethyl N-[4-(prop-2-ynylamino)benzoyl]-L-glutamate with 6-(bromomethyl)-3,4-dihydro-2-methyl-4-oxoquinazoline followed by deprotection using mild alkali. The compounds were tested as
描述了在对氨基苯甲酰基环中具有取代基的九种新的2-甲基-10-炔丙基喹唑啉抗叶酸酯的合成。通常,合成路线涉及将合适的环取代的N- [4-(丙-2-炔丙基氨基)苯甲酰基]苯甲酰基] -L-谷氨酸与6-(溴甲基)-3,4-二氢-2-甲基- 4-氧代喹唑啉,然后用中性碱脱保护。测试了这些化合物作为部分纯化的L1210胸苷酸合酶(TS)的抑制剂。还检查了它们对培养物中L1210细胞生长的抑制作用。与母体化合物1a相比,2'-氟类似物2a在两个系统中均显示出增强的效力,而3'-氟类似物3a对L1210细胞显示出增强的生长抑制特性,尽管分离的酶的抑制剂较弱。氯,羟基,甲氧基,该酶也很好地耐受2'-位的硝基取代基和硝基取代基,但是不能增强生长抑制作用。该系列被扩展以覆盖2'-氟,3'-氟,2'-氯,2'-甲基,2'-氨基,2'-甲氧基和2'-硝基衍生物的类似物,其在烷基上具有修饰的烷基取代基。 N10。