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 1-[6-(methoxymethyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[1,5-a][1,4]diazepin-8-yl]-2-pyridin-2-ylethanone .
user
C15H19N5O2
assistant