(5E)-5-[(3aS,4S,5R,6aR)-4-[(3S)-3-cyclohexyl-3-hydroxyprop-1-ynyl]-5-hydroxy-3,3a,4,5,6,6a-hexahydro-1H-pentalen-2-ylidene]pentanoic acid 、
1,3-dicyclohexyl-2-(2-piperidin-1-yl-ethyl)-isourea 生成 2-piperidin-1-ylethyl (5E)-5-[(3aS,4S,5R,6aR)-4-[(3S)-3-cyclohexyl-3-hydroxyprop-1-ynyl]-5-hydroxy-3,3a,4,5,6,6a-hexahydro-1H-pentalen-2-ylidene]pentanoate