You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(5aR,9aS)-8-(1,3-thiazol-2-ylmethyl)-2,3,5,5a,6,7,9,9a-octahydropyrido[4,3-f][1,4]oxazepin-4-yl]-(furan-2-yl)methanone .
user
C17H21N3O3S
assistant