(1S,4S,8S)-8-((R)-2,2-Dimethyl-1-phenyl-propoxy)-6-methyl-3-oxo-2-oxa-bicyclo[2.2.2]oct-5-ene-4-carboxylic acid methyl ester 在
sodium tetrahydroborate 、 cerium(III) chloride 作用下,
以71%的产率得到(1S,4S,6S)-6-((R)-2,2-Dimethyl-1-phenyl-propoxy)-4-hydroxy-1-hydroxymethyl-3-methyl-cyclohex-2-enecarboxylic acid methyl ester