3-(4-Methoxybenzyl)-6-methyl-3,4-dihydro-2H-[1,3]oxazino[5,6-h]quinoline AIDS-128435 AIDS128435 Methyl 4-((6-methyl-2H-[1,3]oxazino[5,6-h]quinolin-3(4H)-yl)methyl)phenyl ether NSC274560