2-(3,4-dimethoxyphenyl)-5-[[2-(3,4-dimethoxyphenyl)ethyl]-(1-oxyl-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-ylmethyl)-amino]-2-isopropyl-pentanenitrile radical 在
铁粉 、
溶剂黄146 、
potassium carbonate 作用下,
以
水 为溶剂,
以40%的产率得到2-(3,4-dimethoxyphenyl)-5-[[2-(3,4-dimethoxyphenyl)ethyl]-(2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-ylmethyl)-amino]-2-isopropyl-pentanenitrile