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Triethylamine → 7-(1-Acetylamino-3-azabicyclo[3.1.0]hex-3-yl)-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid, ethyl ester

HRID 373703
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 373703
[C:1]([NH:4][C:5]12[CH2:10][CH:9]1[CH2:8][NH:7][CH2:6]2)(=[O:3])[CH3:2].[CH2:11](N(CC)CC)[CH3:12].Cl[C:19]1[N:28]=[C:27]2[C:22]([C:23](=[O:40])[C:24]([C:37]([OH:39])=[O:38])=[CH:25][N:26]2[C:29]2[CH:34]=[CH:33][C:32]([F:35])=[CH:31][C:30]=2[F:36])=[CH:21][C:20]=1[F:41]>C(#N)C>[C:1]([NH:4][C:5]12[CH2:10][CH:9]1[CH2:8][N:7]([C:19]1[N:28]=[C:27]3[C:22]([C:23](=[O:40])[C:24]([C:37]([O:39][CH2:11][CH3:12])=[O:38])=[CH:25][N:26]3[C:29]3[CH:34]=[CH:33][C:32]([F:35])=[CH:31][C:30]=3[F:36])=[CH:21][C:20]=1[F:41])[CH2:6]2)(=[O:3])[CH3:2]
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Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 105460847-Chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acidHCID 157134351-Acetylamino-3-azabicyclo[3.1.0]hexane

Produkt 1

HCID 157134587-(1-Acetylamino-3-azabicyclo[3.1.0]hex-3-yl)-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid, ethyl esterAusbeute 100 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

A mixture of 1-acetylamino-3-azabicyclo[3.1.0]hexane (60 mg, 0.28 mmol) and triethylamine (195 μl, 1.4 mmol) in acetonitrile (10 ml) was treated with the ethyl ester of 7-chloro-6-fluoro-1-(2,4-difluoro-phenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid (95.6 mg, 0.25 mmol) and heated to 80° for 20 hours. The reaction mixture was concentrated in vacuo, diluted with chloroform and washed with saturated aqueous sodium bicarbonate. The organic layer was dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was chromatographed on silica gel (eluant: 189:10:1 chloroform:methanol:conc. ammonium hydroxide) to yield the title product as a yellow oil (120.8 mg, 0.25 mmol, 100% yield). 1H NMR (CDCl3): 8.35 (s, 1H), 8.01 (d, J=13 Hz, 1H), 7.36 (m, 1H), 7.04 (m, 2H), 6.11 (bs, 1H), 4.35 (q, J=7 Hz, 2H), 3.96 (vbs, 1H), 3.69 (vbs, 3H), 1.96 (s, 3H), 1.73 (m, 1H), 1.37 (t, J=7 Hz, 3H), 1.06 (m, 1H), 0.71 (m, 1H).

Aufarbeitung

  1. temperatureheated to 80° for 20 hours
  2. concentrationThe reaction mixture was concentrated in vacuo
  3. additiondiluted with chloroform
  4. washwashed with saturated aqueous sodium bicarbonate
  5. dry with materialThe organic layer was dried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was chromatographed on silica gel (eluant: 189:10:1 chloroform:methanol:conc. ammonium hydroxide)

Quellen und Nachweise

ORD-Eintrag
ord-505c439da41948b59dc0c5eab878c9f3
Quelldatensatz
uspto-grants-1992_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05164402

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