(4S,6S)-5-[2-[(Z)-3-(4-Hydroxy-3-methoxy-phenyl)-acryloyloxy]-eth-(E)-ylidene]-4-methoxycarbonylmethyl-6-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-5,6-dihydro-4H-pyran-3-carboxylic acid 在
sodium hydroxide 作用下,
以
乙醚 为溶剂,
生成
2,6-二甲基-3-O-甲基-4-异丁酰基间苯三酚