You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2,6-dimethyl-4-(3-methyl-3,4,6,7,8,8a-hexahydro-1H-pyrrolo[1,2-a]pyrazin-2-yl)pyridin-3-yl]methanamine into its molecular formula.
user
C16H26N4
assistant