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 (7R)-2-[(2-chlorophenyl)methylsulfanyl]-5-methyl-N-(2-methylphenyl)-7-pyridin-3-yl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide .
user
C26H23ClN6OS
assistant