(-)-(1R,2S,2'R,3'S,4'S)-2-phenylcyclohexyl 2'-allyl-2',3'-dihydroxy-4'-methylhexanoate 、
2,2-二甲氧基丙烷 在
camphor-10-sulfonic acid 作用下,
以
丙酮 为溶剂,
以84%的产率得到(1R,1''S,2S,4'R,5'S)-2-phenylcyclohexyl 4'-allyl-5'-sec-butyl-2',2'-dimethyl-1',3'-dioxolane-4'-carboxylate