反应详情

heating 8-chloro-6-phenyl-1-methyl-4H-s-triazolo-[4,3-a][1,4]benzodiazepine in an inert organic solvent with paraformaldehyde to 100°-140° C. to give 8-chloro-1-(2-hydroxyethyl)-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine; and