Pteridines. XXVII. New synthetic route to pteridines and 7-azapteridines
作者:Edward C. Taylor、Stephen F. Martin、Y. Maki、G. P. Beardsley
DOI:10.1021/jo00952a028
日期:1973.6
MAKI Y., CHEM. AND PHARM. BULL. <CPBT-AL>, 1976, 24, NO 2, 235-237
作者:MAKI Y.
DOI:——
日期:——
[EN] COMPOUNDS AND METHODS FOR TREATMENT OF HCV AND CONDITIONS ASSOCIATED WITH CD81 BINDING<br/>[FR] COMPOSÉS ET PROCÉDÉS DE TRAITEMENT DU VIRUS DE L'HÉPATITE C ET CONDITIONS ASSOCIÉES À LA LIAISON CD81
申请人:UNIV FLORIDA
公开号:WO2009033183A2
公开(公告)日:2009-03-12
The invention features compositions and methods that are useful for treating or preventing HCV infection and associated conditions. In addition, the invention provides methods for identifying compounds useful for treatment of HCV infection and associated conditions.
Reduction of the amidine C=N bond of 7-aminofurazano(3,4-d)-pyrimidines with sodium borohydride.
作者:YOSHIFUMI MAKI
DOI:10.1248/cpb.24.235
日期:——
Reduction of 5-phenyl-7-substituted aminofurazano (3, 4-d) pyrimidines with sodium borohydride was undertaken. In a sharp contrast with the cases of amino, alkylamino and tosylamino derivatives, the presence of acetyl group on the C7-amino function results in the smooth reduction of the amidine C=N bond to give 7-acetamido-6, 7-dihydro derivative. The presence of benzoyl group led to the formation of 6, 7-dihydro derivative accompanied with loss of benzamide. Analogously, reduction of 5-phenyl-7-ethylthiofurazano (3, 4-d) pyrimidine gave the 6, 7-dihydro derivative.