(1S,4aR,5S)-5-Carboxymethyl-6-[1-carboxy-meth-(E)-ylidene]-1,4a-dimethyl-decahydro-naphthalene-1-carboxylic acid methyl ester 在
copper chromite 、
potassium carbonate 、
diborane(6) 作用下,
生成
(1S,4aR,5S,6S)-5-(2-Hydroxy-ethyl)-6-hydroxymethyl-1,4a-dimethyl-decahydro-naphthalene-1-carboxylic acid methyl ester