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 2-(1-tert-butyl-4-methyl-7-oxopyrazolo[3,4-d]pyridazin-6-yl)-N-[4-(trifluoromethyl)phenyl]acetamide .
user
C19H20F3N5O2
assistant