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methyl (5S,6R,8R)-14-(3,4-dimethoxybenzyl)-6-hydroxy-5-methyl-13-oxo-5,6,7,8,14,15-hexahydro-13H-16-oxa-4b,8a,14-triaza-5,8-methanodibenzo[b,h]cycloocta[jkl]cyclopenta[e]-as-indacene-6-carboxylate
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(5S,6S,8R)-14-(3,4-dimethoxybenzyl)-6-hydroxy-6-(hydroxymethyl)-5-methyl-5,6,7,8,14,15-hexahydro-13H-16-oxa-4b,8a,14-triaza-5,8-methanodibenzo[b,h]cycloocta[jkl]cyclopenta[e]-as-indacen-13-one
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(5S,6S,9R)-15-(3,4-dimethoxybenzyl)-6-hydroxy-5-methyl-5,6,8,9,15,16-hexahydro-7H,14H-17-oxa-4b,9a,15-triaza-5,9-methanodibenzo[b,h]cyclonona[jkl]cyclopenta[e]-as-indacene-7,14-dione
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(5S,6R,9R,Z)-7-((benzyloxy)imino)-15-(3,4-dimethoxybenzyl)-6-hydroxy-5-methyl-6,7,8,9,15,16-hexahydro-5H,14H-17-oxa-4b,9a,15-triaza-5,9-methanodibenzo[b,h]cyclonona[jkl]cyclopenta[e]-as-indacen-14-one
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(5S,6R,9R,Z)-7-((benzyloxy)imino)-15-(3,4-dimethoxybenzyl)-6-methoxy-5-methyl-6,7,8,9,15,16-hexahydro-5H,14H-17-oxa-4b,9a,15-triaza-5,9-methanodibenzo[b,h]cyclonona[jkl]cyclopenta[e]-as-indacen-14-one