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What is the molecular formula of the compound with this IUPAC name (8S,11S,14S)-3,18-dimethoxy-4,11-dimethyl-14-[methyl-[(2S)-6-[(2-methylpropan-2-yl)oxycarbonylamino]-2-[3-[[4-(4-propylphenyl)benzoyl]amino]propanoylamino]hexanoyl]amino]-10,13-dioxo-9,12-diazatricyclo[13.3.1.12,6]icosa-1(18),2,4,6(20),15(19),16-hexaene-8-carboxylic acid ?
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C54H68N6O11
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