You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance S-[2-[[(2R,4S,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxy-4-methyloxolan-2-yl]methoxy-(benzylamino)phosphoryl]oxyethyl] 3-hydroxy-2,2-dimethylpropanethioate .
user
C25H35N6O9PS
assistant