SEARCH Articles Figures Tables 3 - Amino-5 -methoxy-2-pyrazinecarbonitrile 3 -Methoxy-2-pyrazinecarbonitrile 3 -Phenyl-2-pyrazinecarbonitrile 3 -Phenylthio-2-pyrazinecarbonitrile 3- Amino-5-chloro-2-pyrazinecarbonitrile 3- Phenylsulfonyl-2-pyrazinecarbonitrile 3-Allyl-5,6-diphenyl-2-pyrazinecarbonitrile 3-Amino-5,6-diphenyl-2-pyrazinecarbonitrile 3-Amino-5- -2-pyrazinecarbonitrile 3-Amino-6-bromo-2-pyrazinecarbonitrile 3-Amino-6-methyl-2-pyrazinecarbonitrile 3-Amino-6-methyl-2-pyrazinecarbonitrile 1-oxide 3-Amino-6-phenyl-2-pyrazinecarbonitrile 3-Chloro-2-pyrazinecarbonitrile 3-Methylamino-2-pyrazinecarbonitrile 6-Acetyl-3-amino-2-pyrazinecarbonitrile Pyrazinecarbonitrile oxides