(1S,6S)-1-{(S)-[(3R,3aR,5aS,6R,7R,9aS,9bS)-6-(2,2-Dimethoxy-ethyl)-3-((R)-1,5-dimethyl-hexyl)-3a,6-dimethyl-dodecahydro-cyclopenta[a]naphthalen-7-yl]-hydroxy-methyl}-2,2,4-trimethyl-7-oxa-bicyclo[4.1.0]hept-4-en-3-one 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
以90%的产率得到(S)-5-{(S)-[(3R,3aR,5aS,6R,7R,9aS,9bS)-6-(2,2-Dimethoxy-ethyl)-3-((R)-1,5-dimethyl-hexyl)-3a,6-dimethyl-dodecahydro-cyclopenta[a]naphthalen-7-yl]-hydroxy-methyl}-5-hydroxy-2,6,6-trimethyl-cyclohex-2-enone