环戊二烯并[c]吡喃-4-羧酸, 1-[[4,6-O-[(1R)-2-[(2S,3R,4S)-3-乙烯基-2-(b-D-吡喃葡萄糖氧基)-3,4-二氢-5-(甲酯基<甲氧羰基>)-2H-吡喃-4-基]亚乙基]-b-D-吡喃葡萄糖基]氧代]-1,4a,5,6,7,7a-六氢-6-羟基-7-甲基-,甲基酯, (1S,4aS,6S,7
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