You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[[4-[2-(5-tert-butyl-5'-oxo-4'-quinolin-3-ylspiro[bicyclo[2.2.0]hexane-2,2'-imidazole]-1'-yl)ethyl]benzoyl]amino]propanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C33H36N4O4
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