Quinazoline antifolate thymidylate synthase inhibitors: 2'-Fluoro-N10-propargyl-5,8,-dideazafolic acid and derivatives with modifications in the C-2 position
作者:Ann L. Jackman、Peter R. Marsham、Timothy J. Thornton、Joel A. M. Bishop、Brigid M. O'Connor、Leslie R. Hughes、A. Hilary Calvert、Terence R. Jones
DOI:10.1021/jm00173a025
日期:1990.11
L1210 cell line and of two mutant L1210 cell lines, the L1210:R7A that overproduces dihydrofolate reductase (DHFR) and the L1210:1565 that has impaired uptake of reduced folates. Compared with their non-fluorinated parent compounds, the 2'-fluoro analogues were all approximately 2-fold more potent as TS inhibitors. Similarly, they also showed improved inhibition of L1210 cell growth (1.5-5-fold), and
描述了2'-氟-10-炔丙基-5,8-二氮杂萘甲酸及其2-脱氨基,2-脱氨基-2-羟甲基和2-脱氨基-2-甲氧基类似物的合成。通常,合成途径包括将N- [2-氟-4-(丙-2-炔氨基)苯甲酰基二乙基]谷氨酸与适当的6-(溴甲基)喹唑啉偶联,然后用弱碱脱保护。测试了这四种化合物以及2-desamino-2-methyl类似物对L1210胸苷酸合酶(TS)的活性。还检查了它们对L1210细胞系和两种突变L1210细胞系(过度产生二氢叶酸还原酶(DHFR)的L1210:R7A和抑制还原叶酸摄取的L1210:1565)生长的抑制作用。与非氟化母体化合物相比,2' -氟类似物作为TS抑制剂的效力均高约2倍。同样,它们还显示出对L1210细胞生长的抑制作用得到改善(1.5-5倍),并且通过与胸腺嘧啶核苷共同孵育而阻止了这种活性。它们都保留或改善了对L1210:R7A和L1210:1565细胞系的活性。