You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[2-(3-chloroanilino)-2-oxoethyl]-N,3-dimethyl-6-propan-2-yl-[1,2]oxazolo[5,4-b]pyridine-4-carboxamide ?
user
C20H21ClN4O3
assistant