You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 4-[(5R)-2,5-diethyl-4-[[4-(trifluoromethoxy)phenyl]methyl]piperazin-1-yl]-1-methyl-2-oxopyrido[3,2-d]pyrimidine-6-carbonitrile ?
user
C25H27F3N6O2
assistant