You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-hydroxypropyl-[6-[(4-methoxyphenyl)methylamino]-9-propan-2-yl-7,8-dihydropurin-2-yl]amino]propan-2-ol is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H34N6O3
assistant