You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[3-(4-bromophenyl)-4-oxoquinazolin-2-yl]propyl]-3-cyclopentyl-N-(2-phenylethyl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H36BrN3O2
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