4-[3-(4-benzyloxy-butyl)-3-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-ureido]-benzoic acid 在
palladium on charcoal 作用下,
以
乙酸乙酯 为溶剂,
以380 mg (90%)的产率得到4-[3-(4-hydroxy-butyl)-3-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-ureido]-benzoic acid