You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (6-methylimidazo[1,2-a]pyridin-2-yl)-[(3R)-3-(pyridin-2-ylmethoxy)piperidin-1-yl]methanone .
user
C20H22N4O2
assistant