You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1R,3aS,3bR,5aR,9aS,9bS,11aS)-1-ethynyl-1-hydroxy-9a,11a-dimethyl-8-[4-[(2S)-1-(quinoline-2-carbonyl)pyrrolidine-2-carbonyl]piperazin-1-yl]-3,3a,3b,4,5,5a,6,9b,10,11-decahydro-2H-indeno[5,4-f]quinolin-7-one by IUPAC nomenclature, provide its molecular formula.
user
C39H47N5O4
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