You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-(2-hydroxyethyl)-3-(5-thieno[2,3-d]pyrimidin-4-yl-6,7-dihydro-4H-pyrazolo[1,5-a]pyrazin-2-yl)propanamide into molecular formula.
user
C17H20N6O2S
assistant