You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (5R,7R)-5-(furan-2-yl)-N-[(4-methoxyphenyl)methyl]-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide into its molecular formula.
user
C20H19F3N4O3
assistant