(E)-N-(4-methylbenzylidene)pyridine-2-sulfonamide 、 (+/-)-2,4,6-trimethylphenyl 2-isocyano-2-phenylacetate 在
N-[3,5-双(三氟甲基)苯基]-N'-[(8a,9S)-6'-甲氧基-9-金鸡宁]硫脲 作用下,
以
甲苯 为溶剂,
反应 0.5h,
以83%的产率得到2,4,6-trimethylphenyl 5-(4-methylphenyl)-4-phenyl-1-(2-pyridinesulfonyl)-4,5-dihydro-1H-4-imidazolecarboxylate