You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-3-[[2-[(3S)-1-ethoxycarbonyl-3-[(4-hydroxy-3,5-dimethylbenzoyl)amino]-4-oxo-2,3-dihydro-1,5-benzodiazepin-5-yl]acetyl]amino]-4-oxobutanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H30N4O9
assistant