You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(7R)-7-amino-3-(3-iodoimidazo[1,2-a]pyridin-6-yl)-5-[4-(trifluoromethyl)phenyl]-6,7-dihydropyrazolo[1,5-a]pyrazin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H14F3IN6O
assistant