SEARCH Articles Figures Tables 2- -2-hydroxy-5-methoxy pyrazine 2- Isobutyl-3-methoxy-pyrazines 2- Methoxy-3- pyrazine bromination 2-Carboxy-5-methoxy pyrazine 2-Chloro-6-methoxy pyrazine 2-Hydroxy-6-methoxy pyrazine methylation 2-Iodo-5-methoxy-6- pyrazine 2-Methoxy-3- pyrazine acetylation 2-Methoxy-3- pyrazine hydrolysis 2-Methoxy-3-isobutyl pyrazine 2-Methoxy-3-isopropyl-pyrazines 2-Methoxy-5,6-dimethyl-3- pyrazine 2-Methoxy-5,6-dimethyl-3- pyrazine acetylation 2-isopropyl-3-methoxy-pyrazine 2-methoxy-3-methyl pyrazine 3-Alkyl-2-methoxy pyrazines 5-Bromo-3-methoxy-2- pyrazine Methoxy pyrazines Methoxy pyrazines Threshold 3-alkyl-2-methoxy pyrazines