You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl N-[4-(4-amino-7-pyridin-4-ylthieno[3,2-c]pyridin-3-yl)phenyl]carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H22N4O2S
assistant