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(4aS,6S,13S,13aS)-14-(cyclohexanecarbonyl)-7-methyl-4,4a,5,6,7,12,13,13a-octahydro-6,13-epiminopyrano[3',4':5,6]cycloocta[1,2-b]indol-1(3H)-one
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(4aS,6S,13S,13aS)-7-methyl-14-pivaloyl-4,4a,5,6,7,12,13,13a-octahydro-6,13-epiminopyrano[3',4':5,6]cycloocta[1,2-b]indol-1(3H)-one
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(4aS,6S,13S,13aS)-14-(adamantane-1-carbonyl)-7-methyl-4,4a,5,6,7,12,13,13a-octahydro-6,13-epiminopyrano[3',4':5,6]cycloocta[1,2-b]indol-1(3H)-one
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(6S,8S,9S,10S)-12-benzoyl-8-(2-hydroxyethyl)-N-methoxy-N,5-dimethyl-6,7,8,9,10,11-hexahydro-5H-6,10-epiminocycloocta[b]indole-9-carboxamide
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(6S,8S,9S,10S)-12-(cyclohexanecarbonyl)-8-(2-hydroxyethyl)-N-methoxy-N,5-dimethyl-6,7,8,9,10,11-hexahydro-5H-6,10-epiminocycloocta[b]indole-9-carboxamide