You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,4R)-3-(cyclopropylmethyl)-4-hydroxy-1-(4,7,8-trimethylquinolin-2-yl)piperidine-3-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H28N2O3
assistant