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 3-(methylamino)-1-(thiepan-3-yl)-3,4,5,5a,6,7,8,8a-octahydrocyclopenta[b]azepin-2-one .
user
C16H28N2OS
assistant