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 methyl 2-[(5aS,8aS)-7-(3-fluorophenyl)sulfonyl-2,3,4,5,5a,6,8,8a-octahydropyrrolo[3,4-b]azepin-1-yl]acetate .
user
C17H23FN2O4S
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