AN IMPROVED SYNTHESIS OF 9-BENZYLADENINE: A MODEL FOR ADENOSINE AND ITS ANALOGUES
作者:Zhiyuan Sun、Ramachandra S. Hosmane
DOI:10.1081/scc-100000581
日期:2001.1
significant adenine nucleosides, has been reported. The target compound was synthesized by condensation of 1-benzyl-4-cyano-5-methoxymethyleneimino-imidazole (14) with guanidine. Compound 14 was prepared from 5-amino-1-benzyl-4-cyanoimidazole (5), which in turn was prepared by reaction of benzylamine with ethyl (Z)-N-(2-amino-1,2-dicyanovinyl) formimidate (13). The latter was synthesized by reaction of diaminomaleonitrile
已经报道了 9-苄基腺嘌呤 (I) 的改进合成,这是多种具有生物学和治疗意义的腺嘌呤核苷的模型。目标化合物通过 1-苄基-4-氰基-5-甲氧基亚甲基亚氨基-咪唑 (14) 与胍的缩合反应合成。化合物 14 由 5-氨基-1-苄基-4-氰基咪唑 (5) 制备,后者又由苄胺与 (Z)-N-(2-氨基-1,2-二氰基乙烯基) 甲酰亚胺乙酯反应制备 ( 13)。后者是通过二氨基马来腈 (6) 与原甲酸三乙酯反应合成的。