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(4R,4aR,7aR,12bS)-6-benzoyl-3-(cyclopropylmethyl)-9-methoxy-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one
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(4R,4aR,7aR,12bS)-6-acetyl-3-(cyclopropylmethyl)-9-hydroxy-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one
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