(S,2E,6E,8E)-10-((2R,3S,6S,8S,9R)-9-butyl-8-((1E,3E)-4-carboxy-3-methylbuta-1,3-dien-1-yl)-9-((3-carboxypropanoyl)oxy)-3-methyl-1,7-dioxaspiro[5.5]undecan-2-yl)-4,8-dimethyl-5-oxodeca-2,6,8-trienoic acid 在
sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 作用下,
生成
5-epireveromycin A