You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name (4-chloro-1H-pyrazol-5-yl)-(9-methoxy-7-thiophen-2-yl-3,5-dihydro-2H-1,4-benzoxazepin-4-yl)methanone ?
user
C18H16ClN3O3S
assistant