3-Amino-6-methyl-5-phenyl-2-pyrazinecarboxamide

Ethyl 3-amino-6-phenyl-2-pyrazinecarboxylate (80, R = OEt) gave 3-amino-/V-methyl-6-phenyl-2-pyrazinecarboxamide (80, R = NHMe) [MeNH2, H20, 80°C, sealed ( ), 2 h 85%] 1522 also many analogues and homologues likewise] 1339 1517 1522 1604... 

Methylamino-5-phenyl-2-pyrazinecarboxamide Methyl 3-amino-5-phenyl-2-pyrazinecarboxylate Methyl 3-amino-6-phenyl-2-pyrazinecarboxylate 3-Methylamino-5-phenyl-2-pyrazinecarboxylic acid 3-Methylamino-6-phenyl-2-pyrazinecarboxylic acid Methyl 3-amino-5-propionyl-2-pyrazinecarboxylate 3-Methylamino-6-(prop-l-ynyl)-2-pyrazinecarbonitrile 3-Methylamino-2-pyrazinamine... 

Amino-/V-methyl-6-phenyl-2-pyrazinecarboxamide (188) gave 3-methyl-6-phenyl-4(3//)-pteridinonc (189) [neat HC(OEt)3, 145°C, open flask, 6 h 78% homologues likewise].1522... 

Ethyl 3-amino- l-benzyl-5-isobutyl-6-oxo-1,6-dihydro-2-pyrazinecarboxylate 4-oxide Ethyl 3-amino-6-benzyloxy-5-isobutyl-2-pyrazinecarboxylate 4-oxide Ethyl 3-amino-6-chloro-5-ethoxy-2-pyrazinecarboxylate Ethyl 6-amino-3-chloromethyl-5-cyano-2-pyrazinecarboxylate Ethyl 6-amino-3-chloromethyl-5-cyano-2-pyrazinecarboxylate 1-oxide Ethyl 3-amino-5-chloro-6-methyl-2-pyrazinecarboxylate Ethyl 3-amino-5-chloro-6-phenyl-2-pyrazinecarboxylate Ethyl 5-amino-6-cyano-3-methyl-2-pyrazinecarboxylate Ethyl 6-amino-5-cyano-3-methyl-2-pyrazinecarboxylate Ethyl 6-amino-5-cyano-3-methyl-2-pyrazinecarboxylate 1-oxide Ethyl 3-amino-5,6-dimethyl-2-pyrazinecarboxylate 5-Ethylamino-6-ethylcarbamoyl-3-methylami no-2-pyrazinecarboxamide... 

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