Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Ethyl 3-amino-6- 2-pyrazinecarboxylate 4-oxide

Methyl 2-cyano-A-(2-hydroxyimino-4-mcthylvalcryl)glycinatc (46, R = Me) gave methyl 3-amino-5-isobutyl-6-oxo-l, 6-dihdyro-2-pyrazinecarboxylate 4-oxide (47, R = Me) (AcOH, 70°C, 3 h >32%) 337 the ethyl ester (47, R = Et) (>62%) was made similarly.848... [Pg.9]

Ethyl 3-amino-6-benzyloxy-5-isobutyl-2-pyrazinecarboxylate 4-oxide (120, R = C02Et) gave 5-benzyloxy-3-hydroxymethyl-6-isobutyl-2-pyrazinamine 1-oxide (120, R = CH2OH) (Bu 2A1H, CHC13—C6H14, 3°C, 45 min 65%).848... [Pg.209]

Ethyl 3-amino-6-phenyl-2-pyrazinecarboxylate from its 4-oxide (251) (PC13, THF, 0 - 20°C, 40 min 79%).1522 Also other examples.544 1339,1517,1530... [Pg.231]

Ethyl 6-amino-2-chloromethyl-5-cyano-2-pyrazinecarboxylate from its 1-oxide (255) [(MeO)3P, PrOH, 20 - 5°C, 12 h 77%].773... [Pg.232]

Ethyl 3-amino-6-hydroxyiminomethyl-2-pyrazinecarboxylate (311) gave a solution of the carbonitrile oxide (312), and thence the cycloadduct, 3-(5-amino-6-ethoxycarbonylpyrazin-2-yl)-3a,4,5,6a-tetrahydrofuro[3,2-d]isoxazole (313) [N-chlorosuccinimide, Me2NCHO, 60°C, N2, 3 h then 2,3-dihydrofuran j, Et j, ... [Pg.346]

In a similar way, ethyl 3-amino-6-hydroxyiminomethyl-2-pyrazinecarboxylate 4-oxide (314) gave ethyl 3-amino-6-(5-phenylisoxazol-3-yl)-2-pyrazinecar-boxylate 4-oxide (315) (as before but using PhC=CH 55%) 836 also many analogues for elaboration to pteridines.836... [Pg.348]

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... [Pg.419]

Ethyl 3-amino-5-isobutyl-6-oxo-1,6-dihydro-2-pyrazinecarboxylate 4-oxide Ethyl 3-amino-5-isopropenyl-6-methyl-2-pyrazinecarboxylate 4-oxide Ethyl 3-amino-6-(2-methylprop-l-enyl)-2-pyrazinecarboxylate 4-oxide... [Pg.419]

Ethyl 3-amino-3-pyrazinecarboxylate 4-oxide Ethyl 5-azidocarbonyl-2-pyrazinecarboxylate 2-Ethyl-3,6-bis(2-hydroxyethyl)pyrazine... [Pg.420]

See other pages where Ethyl 3-amino-6- 2-pyrazinecarboxylate 4-oxide is mentioned: [Pg.194]    [Pg.194]    [Pg.38]    [Pg.420]    [Pg.420]    [Pg.274]    [Pg.420]   
See also in sourсe #XX -- [ Pg.347 ]

See also in sourсe #XX -- [ Pg.347 ]



SEARCH



2-pyrazinecarboxylate

5-Amino-2-ethyl

Amino oxidation

Ethyl 2-pyrazinecarboxylate

Ethyl 3-amino-2-pyrazinecarboxylate

Ethyl oxidation

Ethyl oxide

© 2024 chempedia.info