rac-5-[(4S,5R)-4,5-bis-(4-chloro-phenyl)-4,5-dimethyl-4,5-dihydro-1H-imidazol-2-yl]-N-tert-butyl-2-chloro-4-ethoxy-benzenesulfonamide 、
光气 以
三乙胺 为溶剂,
以to give rac-(4S,5R)-2-(5-tert-butylsulfamoyl-4-chloro-2-ethoxy-phenyl)-4,5-bis-(4-chloro-phenyl)-4,5-dimethyl-4,5-dihydro-imidazole-1-carbonyl chloride的产率得到rac-(4S*,5R*)-2-(5-tert-Butylsulfamoyl-4-chloro-2-ethoxyphenyl)-4,5-bis-(4-chlorophenyl)-4,5-dimethyl-4,5-dihydroimidazole-1-carbonyl chloride