You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1R,2S,5S,6R,10S,15R,23R)-18-amino-1,2,8,8,15,22,22-heptamethyl-12-[5-(morpholin-4-ylmethyl)furan-3-yl]-19,20-diazahexacyclo[12.11.0.02,11.05,10.015,23.017,21]pentacosa-11,17(21),18-triene-6-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C40H58N4O4
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