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。