You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 7-[(3,5-dimethylcyclohexyl)amino]-5-methyl-2H-[1,2,4]triazolo[4,3-c]pyrimidin-3-one using the IUPAC nomenclature.
user
C14H21N5O
assistant