You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[2-(dimethylamino)ethyl]-N-[3-(5-methyltetrazol-2-yl)-1-adamantyl]-5-oxopyrrolidine-3-carboxamide into molecular formula.
user
C21H33N7O2
assistant