3-[(2-(3,4-dimethoxyphenyl)-5-[[2-(3,4-dimethoxyphenyl)ethyl]-methylamino]-2-isopropyl-pentylamino)methyl]-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-1-yloxyl radical 在
铁粉 、
溶剂黄146 、
potassium carbonate 作用下,
以
水 为溶剂,
以46%的产率得到3-[(2-(3,4-dimethoxyphenyl)-5-[[2-(3,4-dimethoxyphenyl)ethyl]methylamino]-2-isopropyl-pentylamino)methyl]-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol