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What is the molecular formula of the compound with this IUPAC name 1-[(1S,2R,13S,14S,16R,20S,21S,23S)-7-[[3-(bromomethyl)cyclopentyl]methyl]-23-hydroxy-2,18,21-trimethyl-17,19-dioxa-6,7-diazahexacyclo[11.10.0.02,10.04,8.014,21.016,20]tricosa-4(8),5,9-trien-20-yl]-2-hydroxyethanone ?
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C31H43BrN2O5
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