You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3R,5S)-5-[2-[4-(4-pyridin-2-ylsulfanylanilino)thieno[3,2-d]pyrimidin-6-yl]ethynyl]pyrrolidin-3-yl] morpholine-4-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H26N6O3S2
assistant