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-[[(Z)-1-[7-(cyclopropylamino)-5-(3-methylsulfanylphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]prop-1-en-2-yl]carbamoyl]formamide into molecular formula.
user
C21H22N6O2S
assistant