You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1R)-1-[7-[(4-methoxyphenyl)methyl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl]ethyl]cyclopropanecarboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H27N5O2
assistant