SEARCH Articles Figures Tables 1- Hydroxy-2- - -3-oxid 2- -3-methylpyrazine oxidation 2- Methylpyrazine 1-oxide 2-Amino-3-cyano-6-methylpyrazine 1-oxide 2-Amino-3-hydroxy-5-methylpyrazine 2-Amino-5- -3-methylpyrazine 1-oxide 2-Cyano-3-methylpyrazine 2-Methylpyrazine 3- -5-hydroxy-2-methylpyrazine 3- Amino-2- -5-methylpyrazine Amino hydroxy Amino oxidation Hydroxy oxides Hydroxy-, oxidation Methylpyrazines