6-(3-acetylphenyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione

1-{4-[(3-nitropyridin-2-yl)oxy]phenyl}ethanone

{3-[(3-nitropyridin-2-yl)thio]phenyl}amine

ethyl 4-{3-[(cyclopropylmethyl)amino]-2,5-dioxopyrrolidin-1-yl}benzoate

ethyl 2-(4-aminophenoxy)isonicotinate

3-{[4-(ethoxycarbonyl)pyridin-2-yl]oxy}benzoic acid

2-hydrazinoisonicotinamide

methyl 2-amino-5-pentyl-4-phenylthiophene-3-carboxylate

1,4-dimethoxy-2,3-dinitrobenzene

2-(chloromethyl)-5-propyl-1,3,4-oxadiazole

7-piperazin-1-yl[1,2,4]triazolo[4,3-a]pyrimidine