You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[2-[(4-methoxyphenyl)methyl]-5-pyrrolidin-1-yl-1,2,4-triazol-3-yl]ethenyl]-5,8-dimethyl-[1,2,4]triazolo[1,5-a]pyrazine is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H26N8O
assistant