You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[methyl-[4-[(2-oxo-1H-quinolin-6-yl)oxy]butanoyl]amino]cyclohexane-1-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H26N2O5
assistant