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 1-[(5aS,8aS)-1-[2-(1,2,4-triazol-1-yl)acetyl]-2,3,4,5,5a,6,8,8a-octahydropyrrolo[3,4-b]azepin-7-yl]-2-(oxan-2-yl)ethanone .
user
C19H29N5O3
assistant