You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(5-ethoxy-2-methyl-2,3-dihydro-1-benzofuran-6-yl)-2-methyl-6-thiophen-2-ylpyridine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H22N2O3S
assistant