5,10-dihydro-3H-pyrimido[4,5-b]quinolin-4-one

n-butyl 3,4-dihydro-4-oxopyrimido<4,5-b>quinoline-2-carboxylate

4-oxo-3,4-dihydropyrimido[4,5-b]quinoline-2-carboxylic acid

4-Oxo-3,4-dihydro-pyrimido[4,5-b]quinoline-2-carboxylic acid ethylamide

{3-[1-(3-benzyl-4-oxo-3,4-dihydro-pyrimido[4,5-b]quinolin-2-yl)-propylamino]-propyl}-carbamic acid tert-butyl ester