You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-[(1S,5R)-6-(3a,4,5,6,7,7a-hexahydro-1,3-benzothiazol-2-ylsulfonylmethyl)-3-azabicyclo[3.1.0]hexan-3-yl]-6-(trifluoromethyl)pyrimidin-2-yl]azetidin-3-ol is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H26F3N5O3S2
assistant