1872-37-3 6,11-Dimethyl-8-(hydroxymethyl)pyrido(3,2-g)oxazolo(5,4,3-ij)quinoline-4,10(2H,11H)-dione BRN 0895762 Nybomycin Pyrido(3,2-g)quinoline-1(2H)carboxaldehyde, 8,9-dihydro-4-(hydroxymethyl)-6,9-dimethyl-2,8-dioxo-