Synthesis of α-(aminomethylene)-9<i>H</i>-purine-6-acetic acid derivatives
作者:Norimitsu Hamamichi、Tadashi Miyasaka
DOI:10.1002/jhet.5570280236
日期:1991.2
α-(Aminornethylene)-9H-purine-6-acetamide (3a) and the corresponding ethyl acetate 9 have been synthesized by catalytic hydrogenation of 6-cyanomethylenepurine derivatives 2 and 7 which were obtained by the substitution of 6-chloropurine derivatives with α-cyanoacetamide and ethyl cyanoacetate, respectively. Substitution of α-(aminomethylene)-9-(tetrahydrofuran)-9H-purine-6-acetamide (3b) with amines