(R)-methoxytrifluoromethylphenylacetyl chloride 、
5(R),16(S)-dihydroxyspata-13,17-diene 在
吡啶 作用下,
生成 (S)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (1R,3R,3aR,3bR,4R,6aS,6bR)-4,6b-dimethyl-3-[(S)-5-methyl-1-methylene-3-((S)-3,3,3-trifluoro-2-methoxy-2-phenyl-propionyloxy)-hex-4-enyl]-decahydro-cyclobutadicyclopenten-1-yl ester