15-(1-phenyl-1H-tetrazol-5-sulfonyl)pentadecanoic acid methyl ester 、
Propanoic acid, 2,2-dimethyl-,18-[(1S,2R)-2-[(1S)-1-methyl-3-oxopropyl]cyclopropyl]octadecyl ester 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
生成 (S)-18-{(1R,2S)-2-[18-(2,2-dimethylpropionyloxy)octadecyl]cyclopropyl}nonadec-15-enoic acid methyl ester 、 (S)-18-{(1R,2S)-2-[18-(2,2-dimethylpropionyloxy)octadecyl]cyclopropyl}nonadec-15-enoic acid methyl ester