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 [5-(3-hydroxy-3-methylbut-1-ynyl)furan-2-yl]-[4-([1,2,4]triazolo[4,3-a]pyridin-3-yl)piperidin-1-yl]methanone .
user
C21H22N4O3
assistant