(1R)-1a-乙酰氧基-1,2,3,6,7,7A,10,14,14ab,14b-十氢-6a-羟基-3,13-二甲氧基-5,5,7ab,9,14ba-五甲基-12H-3b,5ab-环氧-5H-呋喃并[3,4-I]氧杂卓并[4,3-a]氧杂蒽-12-酮 、
氢化铝锂 生成 [(1R,2R,4S,13R,14S,15R,17S)-2,15-dihydroxy-10,17-dimethoxy-4,7,14,19,19-pentamethyl-9-[[(1S,4R)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carbonyl]oxymethyl]-5,18,20-trioxapentacyclo[15.2.1.01,14.04,13.06,11]icosa-6(11),7,9-trien-8-yl]methyl (1S,4R)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxylate