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 4-(3-tert-butyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)-2-[3-(trifluoromethyl)phenyl]morpholine .
user
C20H22F3N5O
assistant