You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[5-cyano-3-(2-ethoxypyridin-3-yl)-1-(4-methoxyphenyl)sulfonyl-2-oxoindol-3-yl]-4-(1-ethylpiperidin-4-yl)piperazine-1-carboxamide;oxirane by IUPAC nomenclature, provide its molecular formula.
user
C37H45N7O7S
assistant