You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-N-[(2S)-butan-2-yl]-2-[[2-(4-tert-butylphenoxy)acetyl]-[(4-methoxyphenyl)methyl]amino]propanamide into its molecular formula.
user
C27H38N2O4
assistant