2(5H)-呋喃酮,5-[(2R)-2-[(1R,1'R,2'S,3'aR,3aR,5'R,7'aS,7aR)-十四氢-2'-羟基-5'-甲氧基-3a,4',4',7'a,7a-五甲基-4-羰基-5,1'-螺联[5H-茚]-1(1H)-基]丙基]-3-甲基-,(5R)-
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