(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 在
sodium hydroxide 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 0.5h,
生成 (5R)-5-[(2S,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 monosodium salt