(5R)-3,4-bis(benzyloxy)-5-((2S,7R)-7-ethyl-9-isopropoxy-7-methyl-8-(4-(methylsulfonyl)phenyl)-1,4,6-trioxaspiro[4.4]non-8-en-2-yl)furan-2(5H)-one 在
palladium on activated charcoal
吡啶 、
氢气 作用下,
以
甲醇 为溶剂,
生成
(5R)-5-[(2R,7R)-7-ethyl-7-methyl-9-(1-methylethoxy)-8-[4-(methylsulfonyl)phenyl]-1,4,6-trioxaspiro[4.4]non-8-en-2-yl]-3,4-dihydroxy-2(5H)-furanone