4-phenylcarbamoyloxy-1-(2'-hydroxy-2'-phenylethyl)-2,2,6,6-tetramethylpiperidine 、
异氰酸苯酯 、
三乙烯二胺 在
苯 、 petroleum ether 作用下,
以
苯 为溶剂,
反应 24.0h,
以to give 4-phenylcarbamoyloxy-1-[2'-(phenylcarbamoyloxy)-2'-phenylethyl]-2,2,6,6-tetramethylpiperidine having a melting point of 173° C.的产率得到4-phenylcarbamoyloxy-1-[2'-(phenylcarbamoyloxy)-2'-phenylethyl]-2,2,6,6-tetramethylpiperidine