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What is the molecular formula of the compound with this IUPAC name dimethyl (2S)-11,15-dimethoxy-5,14-dimethyl-13-oxa-5-azahexacyclo[13.2.2.12,8.01,6.02,14.012,20]icosa-8(20),9,11,18-tetraene-16,17-dicarboxylate ?
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C26H31NO7
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