You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(6-azaspiro[2.5]octan-6-yl)-N-[6-[(3R)-3-hydroxypiperidin-1-yl]pyridin-2-yl]-4-(methylsulfonylmethyl)benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H34N4O4S
assistant