You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (3S)-1-[3-[(4-methylphenyl)methyl]-4-oxothieno[3,2-d]pyrimidin-2-yl]-N-phenylpiperidine-3-carboxamide .
user
C26H26N4O2S
assistant