55149-05-8 CP-32,387 Ethyl 1,4-dihydro-7,8-dimethoxy-4-oxopyrimide[4,5-b]quinoline-2-carboxylate NSC355079 Pirolate Pyrimido[4,5-b]quinoline-2-carboxylic acid, 1,4-dihydro-7,8-dimethoxy-4-oxo-, ethyl ester