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![(3aR,3bS,6S,6aR,7aR)-2,2-二甲基-6-羥基四氫呋喃并[2',3':4,5]呋喃并[2,3-d][1,3]二氧戊環-5(3aH)-酮](/shaoyhuaxue/structure/SY038280.gif)
