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system
Name the molecular formula for the molecule established as 15-methyl-3-oxo-N-[4-(prop-2-enoylamino)butyl]-28-oxa-4,14,19-triazaoctacyclo[12.11.2.115,18.02,6.07,27.08,13.019,26.020,25]octacosa-1,6,8,10,12,20,24,26-octaene-16-carboxamide using the IUPAC nomenclature.
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C33H33N5O4
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