PROCESS FOR PREPARING PURINE DERIVATIVES

摘要

Purine derivs. I [R=H, NH2; n=1--6; R1=-CO-CHR2-NHR3; R2= alpha-amio acid residue; R3=H, oligopeptide residue contg. 2--6 amino arids are prepd. Thus, stirred at room temp. for 24h to give 6-hydroxy-9-(2- chlorocarbonyl-ethyl)-carbonyl oxy-ethyl)purine. HCl.