申请人:——
公开号:US05260296A1
公开(公告)日:1993-11-09
A new thiophene substituted antitumor antifolate, N[5-(2,4-diamino-6-pteridinyl)ethyl]2-theonyl}-L-glutamic acid having the structural formula 1 is provided, as well as methods for its preparation. The new thiophene substituted antifolate 1 is a very potent inhibitor of the enzyme dihydrofolate reductase, undergoes moderate polyglutamylation and is transported to tumor cells more effectively than methotrexate. Compound 1 is an excellent inhibitor of tumor cells growth in culture, the potency being superior to methotrexate against CCRF-CEM human lukemia cells.
提供一种新的噻吩取代抗肿瘤抗叶酸衍生物,化学式为N [5-(2,4-二氨基-6-对氨基苯并二氮烷基)乙基] 2-硫基}-L-谷氨酸,其结构式为1,以及其制备方法。新的噻吩取代抗叶酸物质1是一种非常有效的脱氢叶酸还原酶酶的抑制剂,经过适度的多聚谷氨酸化,并能比甲氨蝶呤更有效地被转运到肿瘤细胞中。化合物1是培养基中肿瘤细胞生长的极好抑制剂,其效力优于对CCRF-CEM人类白血病细胞的甲氨蝶呤。