You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule S-[2-[[[5-(6-aminopurin-9-yl)oxolan-3-yl]amino]-(2-benzoylsulfanylethoxy)phosphoryl]oxyethyl] benzenecarbothioate .
user
C27H29N6O6PS2
assistant