Pyrazines

3,4,7,8-tetrahydro-2H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1(6H)-one

ethyl 1-oxo-1H,2H,3H,4H-pyrrolo[1,2-a]pyrazine-7-carboxylate

3,5,6-trimethylpyrazine-2-carbaldehyde

2-[(tert-butoxy)carbonyl]-1H,2H,3H,4H-pyrrolo[1,2-a]pyrazine-7-carboxylic acid

(4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid

4-Oxo-4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyrazine-2-carboxylic acid methyl ester

5-Bromo-3-trimethylsilanylethynylpyrazin-2-ylamine

(5-Methylpyrazin-2-yl)hydrazine

5H-Pyrrolo[2,3-b]pyrazine

3,5-Dimethylpyrazin-2-ylamine

(5-formyl-pyrazin-2-yl)-carbamic acid tert-butyl ester

(5-methyl-pyrazin-2-yl)-carbamic acid tert-butyl ester

tert-butyl 5-(hydroxymethyl)pyrazin-2-ylcarbamate

4-(Pyrazin-2-yl)benzaldehyde

4-(Pyrazin-2-yl)benzoic acid

3-Aminopyrazine-2-carboxylic acid methylamide