You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[(3aS,5bS,11aR,13aS)-5b,8,8,11a-tetramethyl-3a-[2-[4-(3-methylbutanoyl)piperazin-1-yl]ethylamino]-2,3,4,5,5a,6,7,7a,11,11b,12,13,13a,13b-tetradecahydro-1H-cyclopenta[a]chrysen-9-yl]benzoic acid;acetylene;ethane;prop-1-ene by IUPAC nomenclature, provide its molecular formula.
user
C56H85N3O3
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