SEARCH Articles Figures Tables 2- Bromo-5-phenylpyrazine 2- Chloro-5-hydroxy-3-phenylpyrazine 2- Methoxy-6-phenylpyrazine 4-oxide 2- Methyl-3-phenylpyrazine 2- Methylamino-5 -phenylpyrazine 2- Phenylpyrazine 1-oxide 2-Acetonyl-3-phenylpyrazine 2-Acetoxy-3-phenylpyrazine 2-Amino-3-cyano-5-phenylpyrazine 2-Amino-3-methoxy-5-phenylpyrazine 2-Chloro-3 -methyl-5 -phenylpyrazine 2-Chloro-3-phenylpyrazine 2-Chloro-3-phenylpyrazine 4-oxide 2-Chloro-5-methoxy-3-phenylpyrazine 2-Chloro-6-hydroxy-3-methyl-5-phenylpyrazine 2-Chloro-6-hydroxy-3-methyl-5-phenylpyrazine methylation 2-Chloro-6-methoxy-3-methyl-5-phenylpyrazine 2-Chloromethyl-3-phenylpyrazine 2-Cyano-3-phenylpyrazine 2-Cyanomethyl-3-phenylpyrazine 2-Hydroxy-3-methoxy-5-phenylpyrazine 2-Hydroxy-3-phenylpyrazine 2-Hydroxy-5,6-dimethyl-3-phenylpyrazine 2-Hydroxy-5-nitro-3-phenylpyrazine 2-Iodo-5-phenylpyrazine 2-Methoxy-3 -methyl-5 -phenylpyrazine 2-Methoxy-3-phenylpyrazine 2.3- Dichloro-5-methyl-6-phenylpyrazine 2.5- Dichloro-3-phenylpyrazine 2.5- Diisopropyl-3-phenylpyrazine 2.5- Dimethyl-3-phenylpyrazine 3- Amino-2-chloro-5-phenylpyrazine 3- Amino-2-hydroxy-5-phenylpyrazine 3- Bromo-2-hydroxy-5-phenylpyrazine 3- Hydroxy-2-isobutyl-5-phenylpyrazine 3- Hydroxy-5-methyl-2-phenylpyrazine 5- Amino-2-phenylpyrazine Amino phenylpyrazines Phenylpyrazine derivative