30788-61-5 3-[[3-O-乙酰基-2,6-二脱氧-4-O-(2,6-二脱氧-β-D-核糖-吡喃糖基)-β-D-核糖-吡喃糖基]氧基]-14-羟基心甾-20(22)-烯内酯, (3β,5β)-

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