6-{(1E,3S,5S,6S,7E,9E,11E)-[13-(4-methoxybenzyloxy)-6-(methoxymethoxy)-1,3,5,11-tetramethyltrideca-1,7,9,11-tetraen-1-yl]}-2,2-dimethyl-4H-1,3-dioxen-4-one 、
1-羟基-1-环已基甲酸乙酯 以
xylene 为溶剂,
以50%的产率得到1-(3-{(1S,2S,4aS,5S,6S,8S,8aR)-2-[(E)-3-(4-Methoxy-benzyloxy)-1-methyl-propenyl]-5-methoxymethoxy-1,6,8-trimethyl-1,2,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl}-3-oxo-propionyloxy)-cyclohexanecarboxylic acid methyl ester