You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-4-[[(S)-carboxy(phenyl)methyl]amino]-3-[3-(4-hydroxy-3-methoxyphenyl)propylamino]-4-oxobutanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H26N2O7
assistant