You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[3-(1,4-diazabicyclo[2.2.2]octan-2-yl)-1,2,4-oxadiazol-5-yl]-N-methylpentan-3-amine .
user
C14H25N5O
assistant