ethyl N-(1,3,4-thiadiazol-2-yl)carbamate

1H-benzo[g][3,1]benzoxazine-2,4-dione

ethyl N-[3-(dimethylamino)propyl]carbamate

ethyl N-quinolin-8-ylcarbamate

diethyl 2-oxocyclohexane-1,1-dicarboxylate