You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[2-(3,5-dihydro-2H-1,4-benzoxazepin-4-yl)acetyl]-3-ethylpiperidine-3-carboxylic acid .
user
C19H26N2O4
assistant