4-(trifluoromethyl)-6,7,8,9-tetrahydropyrano[5,6-g]quinolin-2-one 53518-16-4 4-(Trifluoromethyl)-6,7,8,9-tetrahydro-2H-pyrano[3,2-g]quinolin-2-one AIDS-129827 AIDS129827 Coumarin 340 NCI60_003396 NSC369289 2H-Pyrano(3,2-g)quinolin-2-one, 6,7,8,9-tetrahydro-4-(trifluoromethyl)- NSC 369289