Synthesis of 2,4-Diamino-5,6,7,8,9,10-hexahydro-5,9-methanopyrimido[4,5-<i>b</i>]azocine
作者:Edward C. Taylor、James E. Dowling、Beena Bhatia
DOI:10.1021/jo981393b
日期:1999.1.1
We have initiated a program aimed at the synthesis of derivatives of 2,4-diamino-5,6,7,8,9,10-hexahydro-5, 9-methanopyrimido[4, 5-b]azocine (3) as potential selective inhibitors of Pneumocystis carinii DHFR. The present pap er describes a simple synthesis of 3 from 2,4,6-triaminopyrimidine and 2-cyclohexen-1-one as well as methodology for the introduction of a variety of substituents at bridgehead position C-9.