You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [4-(butoxycarbonylamino)phenyl]methyl (3aS,4S,6R,7aS)-4-methyl-6-[[(1S,3S)-3,5,12-trihydroxy-3-(2-hydroxyacetyl)-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]-2,3a,4,6,7,7a-hexahydropyrano[4,3-d][1,3]oxazole-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C41H44N2O15
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