You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-N-[(1S)-1-[4-oxo-3-phenyl-5-[2-(1,3-thiazol-2-yl)ethynyl]quinazolin-2-yl]ethyl]pyrazolo[1,5-a]pyrimidine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H20N8O2S
assistant