(4bS,5aS,8aS)-6,7,8,8a,9,10-Hexahydro-5aH-phenanthro[4b,5-b]oxirene;7H-phenanthro[4b,5-b]oxirene, 5a,6,8,8a,9,10-hexahydro-, (4bS,5aS,8aS)-
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