You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-[[(2R,4R,5R)-5-[5-(4-methoxyphenyl)-2-methylpyrazol-3-yl]-1-azabicyclo[2.2.2]octan-2-yl]methyl]acetamide using the IUPAC nomenclature.
user
C21H28N4O2
assistant