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Methyl 2-pyrazinecarboxylate 4-oxide

Methyl 2-pyrazinecarboxylate 1-oxide (221) and the isomeric 4-oxide (K2S208, H2S04, 10 — 20°C, 24 h, chromatographic separation substrate (37%), 1-oxide (15%), 4-oxide (7%)].1300... [Pg.227]

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]

Methyl 3-chloroformyl-2-pyrazinecarboxylate Methyl 6-chloro-5-methoxy-3-oxo-3,4-dihydro-2-pyrazinecarboxylate Methyl 6-chloro-3-methoxy-2-pyrazinecarboxylate Methyl 3-chloro-5-methyl-2-pyrazinecarboxylate Methyl 5-chloro-6-methyl-2-pyrazinecarboxylate Methyl 5-chloro-6-methyl-2-pyrazinecarboxylate 1-oxide Methyl 6-chloro-3-nitro-2-pyrazinecarboxylate Methyl 6-chloro-3-oxo-3,4-dihdyro-2-pyrazinecarboxylate... [Pg.444]

Chemical Name 2-Pyrazinecarboxylic acid, 5-methyl-, 4-oxide... [Pg.70]

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]

Hydroxyiminopropionaldehyde dimethyl acetal (264) and ethyl 2-formamido-2-formylacetate (265) gave ethyl 5-methyl-2-pyrazinecarboxylate 4-oxide (266) (HCl/AcMe, reflux %).1167... [Pg.36]

Methyl 6-benzyloxy-3-chloro-5-isobutyl-2-pyrazinecarboxylate 4-oxide (134, R = Cl) gave methyl 6-benzyloxy-5-isobutyl-3-methoxy-2-pyrazinecar-boxylate 4-oxide (134, R = OMe) (MeONa, MeOH, 20°C, 30 min 71%).337... [Pg.164]

Methyl 6-chloro-2-pyrazinecarboxylate 4-oxide gave methyl 6-thioxo-l,6-dihy-dro-2-pyrazinecarboxylate 4-oxide (138) (NaHS, EtOH, 20°C, 3 h 46%).89 2-Chloropyrazine gave 2( l//)-pyrazincthione [NaHS/MeOH (made in situ), reflux, 1 h 91%].1602... [Pg.165]

Methyl 3-amino-5-isobutyl-6-oxo-1,6-dihydro-2-pyrazinecarboxylate 4-oxide gave methyl 3-amino-6-benzyloxy-5-isobutyl-2-pyrazine carboxylate 4-oxide (62) (PhCH2Br, KHC03, Me2NCHO, 20°C, 16 h 74%).337... [Pg.200]

Methyl 6-benzyloxy-5-isobutyl-3-methoxy-2-pyrazinecarboxylate 4-oxide (121, R = C02Me) gave 2-benzyloxy-6-hydroxymethyl-3-isobutyl-5-methoxy-pyrazine 4-oxide (121, R = CH2OH) [LiAl(OBu03H, THF, 0 7°C, 18 h ... [Pg.210]

Acipimox, 5-methyl-2-pyrazinecarboxylic acid 4-oxide, antihyperlipidaemic [51037-30-0],... [Pg.240]

Methyl-2-pyrazinecarboxamide 4-oxide (10, R = NH2) gave 5-methyl-2-pyrazinecarboxylic acid 4-oxide (10, R = OH) (2.5 M NaOH, reflux, 30 min ... [Pg.301]

Methyl-2-pyrazinecarboxylic acid 4-oxide (35, R = H) gave methyl 5-methyl-2-pyrazinecarboxylate 4-oxide (35, R = Me) (BF3.Et30, MeOH, reflux, 6 h 75%).669... [Pg.305]

Methyl 6-amino-5-cyano-3-formyl-2-pyrazinecarboxylate 1-oxide (261, X = O) gave the Schiff base, methyl 6-amino-5-cyano-3-(p-ethoxycarbonylphenylim-inomethyl)-2-pyrazinecarboxylate 1-oxide (261, X = />Et02CC6II4N ) (Et02CC6H4NH2-p, trace TsOH, PhMe, reflux, 1 h 95%).773... [Pg.338]

S c- Buty 1-5 - methylpyrazine 2-Butyl-6-methylpyrazine 2-5, c-Butyl-6-methylpyrazine 2-te rt- B utyl - 6- methylpyrazine 2-s c- Buty 1-5 - methylpyrazine 4-oxide 6-s c-Butyl-3-methyl-2(l /)-pyrazinone Butyl 6-oxo-l,6-dihydro-2-pyrazinecarboxylate 4-oxide 2-Butyl-3-pivalamidopyrazine 2-sec-Butyl-3-pivalamidopyrazine... [Pg.382]

Chloro-5-methylpyrazine 2-Chloro-6-methylpyrazine 6-Chloro-A,-methyl-2-pyrazinecarboxamidine 6-Chloro-5-methyl-2-pyrazinecarboxylic acid 5-Chloro-6-methyl-2-pyrazinecarboxylic acid 1-oxide... [Pg.393]

Ethyl 3-methyl-2-pyrazinecarboxylate Ethyl 5-methyl-2-pyrazinecarboxylate 4-oxide... [Pg.422]

Ethylthio-2-pyrazinecarbonitrile 6-Ethylthio-2-pyrazinecarbonitrile 6-Ethylthio-2-pyrazinecarbothioamide 3-Ethylthio-2-pyrazinecarboxamide 6-Ethylthio-2-pyrazinecarboxamide 3-Ethylthio-2-pyrazinecarboxylic acid 6-Ethylthio-2-pyrazinecarboxylic acid 3-Ethylthio-2,5-pyrazinedicarboxamide 2-Ethylthiopyrazine 1-oxide 2-Ethyl-3,5,6-trimethylpyrazine 2-Ethyl-3,5,6-triphenylpyrazine 2-Ethyl-3-vinylpyrazine 2-Ethynyl-3,6-dimethylpyrazine 2-Ethynyl-3-methylpyrazine 2-Fluoro-5,6-dimethoxy-3-methylpyrazine 2- Fluoro- 5,6-dimethoxypyrazine 2-Fluoro-3,6-dimethylpyrazine 2-Fluoro-3-(l-hydroxyethyl)pyrazine 2-Fluoro-3-iodopyrazine 2-Fluoromethyl-5-methyl-3,6-diphenylpyrazine 2- Fluoro- 5-phenylpyrazine 2-Fluoro-3-phenylthiopyrazine... [Pg.423]

Hydroxymethyl-2-pyrazinecarboxylic acid 2-Hydroxymethylpyrazine 4-oxide l-Hydroxy-3-methyl-2(17/)-pyrazinone l-Hydroxy-5-methyl-2(17/)-pyrazinone... [Pg.430]

Methyl 3-amino-5-anilino-2-pyrazinecarboxylate Methyl 3-amino-5-benzoyl-6-bromo-2-pyrazinecarboxylate Methyl 3-amino-5-benzoyl-2-pyrazinecarboxylate Methyl 3-amino-5-benzylamino-6-chloro-2-pyrazinecarboxylate Methyl 3-amino-5-benzylamino-2-pyrazinecarboxylate Methyl 3-amino-6-benzyloxy-5-isobutyl-2-pyrazinecarboxylate 4-oxide Methyl 3-amino-6-bromo-5-chloro-2-pyrazinecarboxylate Methyl 3-amino-6-bromo-5-diethylamino-2-pyrazinecarboxylate... [Pg.438]

Methyl 3-amino-6-bromo-2-pyrazinecarboxylate Methyl 3-amino-6-bromo-2-pyrazinecarboxylate 4-oxide Methyl 3-amino-5-butylamino-6-chloro-2-pyrazinecarboxylate... [Pg.438]

Methyl 6-amino-5-cyano-3-formyl-2-pyrazinecarboxylate 1-oxide 203-204, IR, NMR Me2 acetal 162-163, NMR 759, 773... [Pg.440]

Methyl 3-bromo-6-chloro-5-dimethylamino-2-pyrazinecarboxylate Methyl 3-bromo-6-chloro-5-ethylamino-2-pyrazinecarboxylate Methyl 3-bromo-6-chloro-2-pyrazinecarboxylate Methyl 6-bromo-3-cyclopropylamino-2-pyrazinecarboxylate Methyl 6-bromo-3-dimethylamino-2-pyrazinecarboxylate Methyl 6-bromo-3-methylamino-2-pyrazinecarboxylate Methyl 6-bromo-3-methylthio-2-pyrazinecarboxylate Methyl 6-bromo-3-oxo-3,4-dihydro-2-pyrazinecarboxylate Methyl 3-bromo-2-pyrazinecarboxylate Methyl 6-bromo-2-pyrazinecarboxylate I-(3-Methyl but-2-cnyl)-2(l //)-pyrazinone 4-oxide... [Pg.443]

Methyl-5,6-diphenyl-2-pyrazinecarbonitrile Methyl 5,6-diphenyl-2-pyrazinecarboxylate 2-Methyl-5,6-diphenylpyrazine 1-oxide... [Pg.445]

A-Melliyl 6 oxo l.(>dihydro 2-pyrazinecarboxamide 4-oxide Methyl 3-oxo-3,4-dihydro-2-pyrazinecarboxylate... [Pg.446]

Methyl-5-oxo-4,5-dihydro-2-pyrazinecarboxylic acid 1 - Methy 1-6-oxo-1,6-dihy dro-2-pyrazinecarboxylic acid 4-oxide... [Pg.447]

See other pages where Methyl 2-pyrazinecarboxylate 4-oxide is mentioned: [Pg.449]    [Pg.449]    [Pg.322]    [Pg.157]    [Pg.246]    [Pg.194]    [Pg.190]    [Pg.147]    [Pg.209]    [Pg.354]    [Pg.356]    [Pg.420]    [Pg.440]    [Pg.443]    [Pg.446]    [Pg.447]    [Pg.447]    [Pg.449]    [Pg.449]    [Pg.449]    [Pg.449]    [Pg.450]   
See also in sourсe #XX -- [ Pg.227 ]

See also in sourсe #XX -- [ Pg.227 ]



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2-pyrazinecarboxylate

5-Methyl-2-pyrazinecarboxylic acid 4-oxide

Methyl 2-pyrazinecarboxylate

Methyl 3-oxid

Methyl oxide

Methyl, oxidation

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