You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3,6-dimethyl-[1,2]oxazolo[5,4-b]pyridine-4-carbonyl)-3,4-dihydro-1H-isoquinoline-7-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H17N3O4
assistant