You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (2R,4R)-1-(5-chloro-6-propan-2-yloxypyridine-3-carbonyl)-2-methyl-3,4-dihydro-2H-quinoline-4-carboxamide ?
user
C20H22ClN3O3
assistant