(+)-(1S,2R,2'S,3'R,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85%的产率得到(1S,1''S,2R,4'S,5'R)-2-phenylcyclohexyl 4'-allyl-5'-sec-butyl-2',2'-dimethyl-1',3'-dioxolane-4'-carboxylate