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 (2S,4R)-1-(imidazo[1,2-a]pyridin-2-ylmethyl)-2-methyl-3,4-dihydro-2H-quinoline-4-carboxamide .
user
C19H20N4O
assistant