<i>Pneumocystis c</i><i>arinii</i> and <i>Toxoplasma </i><i>g</i><i>ondii</i> Dihydrofolate Reductase Inhibitors and Antitumor Agents: Synthesis and Biological Activities of 2,4-Diamino-5-methyl-6-[(monosubstituted anilino)methyl]- pyrido[2,3-<i>d</i>]pyrimidines
作者:Aleem Gangjee、Ona Adair、Sherry F. Queener
DOI:10.1021/jm990079m
日期:1999.7.1
achieved by reductive methylation. In contrast to previous reports of trimethoprim, the removal of methoxy and chloro groups from the phenyl ring in the 2, 4-diamino-5-methyl-6-[(substitutedanilino)methyl]pyrido[2, 3-d]pyrimidine series generally did not decrease DHFR inhibitory activity. The monosubstituted phenyl analogues 5-12 were as potent against pcDHFR and tgDHFR as the previously reported disubstituted