1,6-naphthyridine-8-carbonitrile, 5-amino-7-chloro-1,2,3,4-tetrahydro-4-methyl-2-oxo- 5-amino-7-chloro-4-methyl-2-oxo-1,2,3,4-tetrahydro-1,6-naphthyridine-8-carbonitrile InChI=1/C10H9ClN4O/c1-4-2-6(16)14-8-5(3-12)9(11)15-10(13)7(4)8/h4H,2H2,1H3,(H2,13,15)(H,14,16