申请人:ICN Pharmaceuticals, Inc.
公开号:US03948885A1
公开(公告)日:1976-04-06
A 5-hydroxy-1,2,3-triazole-4-carboxamide nucleoside, related to the C-nucleoside pyrazomycin, is facilely synthesized by condensation of acyl-blocked ribofuranose with trimethylsilylated 5-hydroxy-1,2,3-triazole-4-carboxamide or, alternatively, by cycloaddition of suitably blocked .beta.-D-ribofuranosyl azide and the anion of ethyl malonamate, and demonstrated to exhibit antiviral properties. The triazole precursor of the former route, as well as certain of its novel salts, are also disclosed as potential antiviral agents.
一种与C-核苷类似的5-羟基-1,2,3-三唑-4-甲酰胺核苷,通过酰基阻滞核糖呋喃糖与三甲基硅基5-羟基-1,2,3-三唑-4-甲酰胺的缩合或适当阻滞的β-D-核糖呋喃基氮和乙基马洛酸酸根的环加成法简便合成,并表现出抗病毒性能。前一路线的三唑前体以及其某些新型盐也被披露为潜在的抗病毒剂。