You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-[5-(diethylsulfamoyl)-2-oxopyridin-1-yl]-N-(2-methylbutan-2-yl)acetamide is given. What is its corresponding molecular formula?
user
C16H27N3O4S
assistant