You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(4aR,6R,7S,7aR)-4a-(difluoromethyl)-7-fluoro-2-propan-2-yloxy-2-sulfanylidene-4,6,7,7a-tetrahydrofuro[3,2-d][1,3,2]dioxaphosphinin-6-yl]-4-amino-5-chloropyrimidin-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H16ClF3N3O5PS
assistant