(2R,5S,10R)-2-[(S)-1-Hydroxy-1-methyl-2-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-ethyl]-6,10-dimethyl-spiro[4.5]dec-6-en-8-one 在
三氟乙酸 作用下,
反应 2.0h,
生成
[2R-[2ALPHA(S*),5ALPHA(R*)]]-2-(1,2-二羟基-1-甲基乙基)-6,10-二甲基螺[4.5]癸-6-烯-8-酮