You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-(1,2-dihydropyrimidin-5-yl)-4-morpholin-4-ylthieno[2,3-d]pyrimidin-6-yl]propan-2-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H21N5O2S
assistant