You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-(6-aminopurin-9-yl)-2-methylsulfanyl-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-7-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C11H14N5O5PS
assistant