You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(6S)-6-tert-butyl-3-cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl]-1,3-dihydro-2-benzofuran-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H24N2O2S
assistant