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 2-(6-chloro-3,4-dihydro-2H-1,5-benzodioxepin-8-yl)-N-[2-(4-methoxyphenoxy)ethyl]acetamide .
user
C20H22ClNO5
assistant