Methotrexate analogs. 34. Replacement of the glutamate moiety in methotrexate and aminopterin by long-chain 2-aminoalkanedioic acids
作者:Andre Rosowsky、Henry Bader、William Kohler、James H. Freisheim、Richard G. Moran
DOI:10.1021/jm00402a014
日期:1988.7
Eight previously unreported methotrexate (MTX) and aminopterin (AMT) analogues with the L-glutamate moiety replaced by DL-2-aminoalkanedioic acids containing up to 10 CH2 groups were synthesized from 4-amino-4-deoxy-N10-methylpteroic or 4-amino-4-deoxy-N10-formylpteroic acid. All the compounds were potent inhibitors of purified L1210 mouse leukemia dihydrofolate reductase (DHFR), with IC50's of 0.023-0
从4-氨基-4-脱氧-N10-甲基蝶呤或4-氨基-4-合成了八个以前未报告的甲氨蝶呤(MTX)和氨基蝶呤(AMT)类似物,其中L-谷氨酸部分被DL-2-氨基链烷二酸所取代,该DL-2-氨基链烷二酸含有多达10个CH2基团。氨基-4-脱氧-N10-甲酰基蝶酸。所有化合物都是纯化的L1210小鼠白血病二氢叶酸还原酶(DHFR)的有效抑制剂,MTX类似物的IC50为0.023-0.034 microM,AMT类似物的IC50为0.054-0.067 microM。该化合物不是部分纯化的小鼠肝叶酰聚谷氨酸合成酶(FPGS)的底物,而是它们的抑制剂。活性与侧链中CH 2基团的数量相关。链增长的MTX类似物对培养物中细胞生长的抑制作用的IC50为0.016-0.64 microM(针对CEM人白血病淋巴母细胞)和0。针对L1210小鼠白血病细胞的0012-0.026 microM。但是,抑制生长的最佳