5-{[(1S,2S,3R,4aS,8aS)-3-amino-2,5,5,8a-tetramethyldecahydronaphthalen-1-yl]carbonyl}benzene-1,3-diol 、
异氰酸乙酯 在
氩 、 silica gel 、 Dichloromethane methanol ammonium hydroxide 作用下,
以
四氢呋喃 为溶剂,
反应 66.0h,
以to give 1-[(2R,3S,4S,4aS,8aS)-4-[(3,5-dihydroxyphenyl)carbonyl]-3,4a, 8,8-tetramethyl-decahydronaphthalen-2-yl]-3-ethylurea as a colourless solid (Compound No的产率得到1-[(2R,3S,4S,4aS,8aS)-4-[(3,5-dihydroxyphenyl)carbonyl]-3,4a, 8,8-tetramethyl-decahydronaphthalen-2-yl]-3-ethylurea