(R)-4-(4-chlorobenzyl)-3-methyl-5-(pyrrolidin-2-yl)-4H-1,2,4-trazole hydrochloride 、
N-cyano-N'-(4-trifluoromethyl) phenylcarbamimidic acid phenyl ester 在
N,N-二异丙基乙胺 作用下,
以
乙腈 为溶剂,
反应 16.0h,
以46%的产率得到(R,E)-2-(4-(4-chlorobenzyl)-5-methyl-4H-1,2,4-triazol-3-yl)-N'-cyano-N-(4-(trifluoromethyl)phenyl)pyrrolidine-1-carboxamidine