You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[2-methyl-5-(7-methylimidazo[1,2-a]pyridin-2-yl)phenyl]-2,3-dihydro-1-benzofuran-5-sulfonamide .
user
C23H21N3O3S
assistant