You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1R)-2-[(2S,4R)-2,6-dimethyl-4-phenyl-3,4-dihydro-2H-quinolin-1-yl]-2-oxo-1-phenylethyl] acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H27NO3
assistant