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What is the molecular formula of the molecule [(1R,3S,4S,11S)-8-butoxy-4-(dimethylamino)-11,14-dihydroxy-19-methoxy-18-(1-methoxyethyl)-10,12-dioxo-6-oxa-7-azapentacyclo[11.8.0.03,11.05,9.015,20]henicosa-5(9),7,13,15,17,19-hexaen-16-yl] tert-butyl carbonate ?
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C34H44N2O11
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