Sodium hydride → 7-(1-t-Butoxycarbonyl-3-pyrrolidinyloxy)-1-cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

HRID 465389Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 465389
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH:10]([O:13][C:14]2[C:23](F)=[C:22]3[C:17]([C:18](=[O:31])[C:19]([C:28]([OH:30])=[O:29])=[CH:20][N:21]3[CH:25]3[CH2:27][CH2:26]3)=[CH:16][C:15]=2[F:32])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[CH3:35][O-:36].[Na+]>CN(C=O)C.C(Cl)(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH:10]([O:13][C:14]2[C:23]([O:36][CH3:35])=[C:22]3[C:17]([C:18](=[O:31])[C:19]([C:28]([OH:30])=[O:29])=[CH:20][N:21]3[CH:25]3[CH2:27][CH2:26]3)=[CH:16][C:15]=2[F:32])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

6

Edukt 3

HCID 24758Sodium hydrideHCID 10942334Sodium MethoxideHCID 150215827-(1-t-Butoxycarbonyl-3-pyrrolidinyloxy)-1-cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

Produkt 1

HCID 150215837-(1-t-Butoxycarbonyl-3-pyrrolidinyloxy)-1-cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6212ChloroformLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

7-(1-t-Butoxycarbonyl-3-pyrrolidinyloxy)-1-cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (300 mg) was dissolved in 3 ml of DMF, followed by the addition of 32 mg of 55% sodium hydride under ice cooling. After the resultant mixture was stirred for 10 minutes, 72 mg of sodium methoxide was added. The mixture thus obtained was stirred further for 18 hours at room temperature. The reaction mixture was diluted with chloroform and then washed successively with 10% aq. citric acid solution and saturated saline. The organic layer was dried over anhydrous sodium sulfate and then concentrated to dryness, whereby 7-(1-t-butoxycarbonyl-3-pyrrolidinyloxy)-1-cyclopropyl-6-fluoro-8-methoxy-1,4-dihydro-4-oxoquinoline-3-carboxylic acid was obtained. It was used directly in the reaction of the next step without further purification.

Aufarbeitung

  1. customThe mixture thus obtained
  2. washwashed successively with 10% aq. citric acid solution and saturated saline
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. concentrationconcentrated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-515b7b8d9ff44c88a1ad5573d76f6c1a
Quelldatensatz
uspto-grants-1992_10
Patentnummer
US05153203

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