SEARCH Articles Figures Tables 2,5-Dimethyl-3,6-diphenylpyrazine 1-oxide 2- Benzyl-3,5-diphenylpyrazine 2- Chloro-3-methoxycarbonyl-5,6-diphenylpyrazine 2- Chloro-5-ethoxy-3,6-diphenylpyrazine 2- Hydrazino-3-hydroxy-5,6-diphenylpyrazine 2- Hydroxy-3,5-diphenylpyrazine 2- Hydroxy-3-isobutyl-5,6-diphenylpyrazine 2-Acetamido-3,6-diphenylpyrazine 2-Acetonyl-5,6-diphenylpyrazine 2-Acetoxy-6-chloro-3,5-diphenylpyrazine 2-Amino-3,6-diphenylpyrazine 2-Amino-3-carbamoyl-5,6-diphenylpyrazine 2-Amino-3-chloro-5,6-diphenylpyrazine 2-Amino-3-cyano-5,6-diphenylpyrazine 2-Azido-3,5-diphenylpyrazine 2-Bromo-3-hydroxy-5,6-diphenylpyrazine 2-Carbamoyl-3-chloro-5,6-diphenylpyrazine 2-Carboxy-3- -5,6-diphenylpyrazine 2-Carboxy-3-hydroxy-5,6-diphenylpyrazine 2-Chloro-3,6-diphenylpyrazine 2-Chloro-3-hydroxy-5,6-diphenylpyrazine 2-Chloro-3-hydroxy-5,6-diphenylpyrazine with phosphoryl chloride 2-Chloro-5,6-diphenylpyrazine 1-oxide 2-Chloro-5-methoxy-3,6-diphenylpyrazine 2-Ethoxy-3,6-diphenylpyrazine 2-Hydroxy-3-methoxy-5,6-diphenylpyrazine 2-Hydroxy-3-nitro-5,6-diphenylpyrazine 2-Methylamino-5,6-diphenylpyrazine 2.3- Dibromo-5,6-diphenylpyrazine 2.3- Dichloro-5,6-diphenylpyrazine 2.3- Dicyano-5,6-diphenylpyrazine 2.3- Diphenylpyrazine 1,4-dioxide 2.3- Diphenylpyrazine 1-oxide 2.3- Diphenylpyrazine reduction 2.5- Diethyl-3,6-diphenylpyrazine 2.5- Dihydroxy-3,6-diphenylpyrazine 2.5- Dihydroxy-3,6-diphenylpyrazine methylation 3- Bromo-2,5-diphenylpyrazine 3- Cyano-2,5-diphenylpyrazine 3- Hydroxy-2,5-diphenylpyrazine methylation 3- Hydroxy-2,5-diphenylpyrazine nitration 3-Methoxy-2,5-diphenylpyrazine 3.6- Dimethyl-2,5-diphenylpyrazine 5- Acetyl-2,3-diphenylpyrazine 5- Carbamoyl-2,3-diphenylpyrazine 5-Ethyl-2,3-diphenylpyrazine 5-Hydrazino-2,3-diphenylpyrazine 5-Methoxycarbonyl-2,3-diphenylpyrazine 5-Methyl-2,3-diphenylpyrazine