You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[benzyl-[2-(4-propan-2-ylphenoxy)acetyl]amino]-N-(2-methylpropyl)-3-phenylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H38N2O3
assistant