SEARCH Articles Figures Tables 2- -3-methylpyrazine oxidation 2- Amino-5-methoxy 2- Methylpyrazine 1-oxide 2-Amino-3-cyano-6-methylpyrazine 1-oxide 2-Amino-5- -3-methylpyrazine 1-oxide 2-Cyano-3-methylpyrazine 2-Methoxy-3 -methylpyrazine 2-Methoxy-3-methylpyrazines 2-Methylpyrazine 3- Amino-2- -5-methylpyrazine 4- cyano-1-methoxy Amino oxidation Methylpyrazines