6-cyclopentyl-5-[4-(methylsulfonyl)phenyl]hexane-2,4-dione 、
异氰基乙酸乙酯 、
甲苯 在
dodecacarbonyltetrarhodium(0) 、
氩 作用下,
反应 16.0h,
以the title compound (0.44 g, yield 43%) was obtained as colorless amorphous crystals from a fraction的产率得到ethyl 5-{2-cyclopentyl-1-[4-(methylsulfonyl)phenyl]ethyl}-3-methyl-1H-pyrrole-2-carboxylate