1 5SJ Ethyl (2~{R})-2-methyl-3-oxidanylidene-2,4-dihydro-1~{H}-quinoxaline-6-carboxylate 1.000 2 9VZ Ethyl (6~{R})-2-methyl-4,5,6,7-tetrahydro-1,3-benzothiazole-6-carboxylate 0.778 3 5GV (2r)-2-ethyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid 0.737 4 N1E Methyl quinoline-6-carboxylate 0.722 5 5QY (3~{S})-3-methyl-3,4-dihydro-1~{H}-quinoxalin-2-one 0.706