(R)-(+)-α-甲氧基-α-(三氟甲基)苯乙酸 、
dothideomycetone A 在
4-二甲氨基吡啶 、
N,N'-二环己基碳二亚胺 作用下,
以
氘代氯仿 为溶剂,
以1.8 mg的产率得到[(1S,6S)-6-hydroxy-4,6-dimethyl-3-[2-[(1S,2R,6S)-2-methyl-6-[(2R)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoyl]oxycyclohexyl]-2-oxoethyl]-5-oxocyclohex-3-en-1-yl] (2R,3R,4S)-2,4-dimethyl-3-[(2R)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoyl]oxyhexanoate