You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-amino-8-[(2,3,6-trifluorophenyl)-(3,3,3-trifluoropropylsulfonyl)methyl]pyrido[1,2-a]pyrimidin-4-one into molecular formula.
user
C18H13F6N3O3S
assistant