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Sodium hydride → 5-[5-Fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ((R)-2-dimethylcarbamoylmethyl-3-oxo-isoxazolidin-4-yl)-amide

HRID 1664477
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1664477
[O:1]=[C:2]1[C@H:6]([NH:7][C:8]([C:10]2[C:14]([CH3:15])=[C:13](/[CH:16]=[C:17]3\[C:18](=[O:27])[NH:19][C:20]4[C:25]\3=[CH:24][C:23]([F:26])=[CH:22][CH:21]=4)[NH:12][C:11]=2[CH3:28])=[O:9])[CH2:5][O:4][NH:3]1.[H-].[Na+].Br[CH2:32][C:33]([N:35]([CH3:37])[CH3:36])=[O:34]>>[CH3:36][N:35]([CH3:37])[C:33]([CH2:32][N:3]1[C:2](=[O:1])[C@H:6]([NH:7][C:8]([C:10]2[C:14]([CH3:15])=[C:13](/[CH:16]=[C:17]3\[C:18](=[O:27])[NH:19][C:20]4[C:25]\3=[CH:24][C:23]([F:26])=[CH:22][CH:21]=4)[NH:12][C:11]=2[CH3:28])=[O:9])[CH2:5][O:4]1)=[O:34]
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Komponenten

4

Edukt 3

HCID 24758Sodium hydrideHCID 2255442-Bromo-N,N-dimethylacetamideHCID 584325545-[5-Fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ((R)-3-oxo-isoxazolidin-4-yl)-amide

Produkt 1

HCID 592160095-[5-Fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ((R)-2-dimethylcarbamoylmethyl-3-oxo-isoxazolidin-4-yl)-amideAusbeute 13,6 %

Versuchsvorschrift

To the solution of 42b (1.0 eq.) cooled on ice bath was added NaH (4.0 or 1.5 eq.). The resulting mixture was stirred for an hour and was then added 2-bromo-N,N-dimethylacetamide (1.0 eq.), the reaction mixture was stirred at room temperature for several hours. LC/MS detection was applied to determine completion of the reaction. DMF was evaporated under reduced pressure and the residue was precipitated with 5% diethylamine/methanol under sonication. The solid was collected by filtration, washed with methanol twice, and further purified by column chromatography to obtain title compound (30 mg, 13.6% yield) as orange solids: 1H NMR (300 MHz, DMSO-d6): δ=13.73 (s, 1H), 10.93 (s, 1H), 8.05-8.08 (d, 1H), 7.74-7.80 (m, 2H), 6.82-6.97 (m, 2H), 5.06-5.15 (q, 1H), 4.39-4.58 (m, 3H), 4.05-4.11 (q, 1H), 2.97 (s, 3H), 2.84 (s, 3H), 2.44-2.47 (ds, 6H). LC/MS: 468.2 [M−H]+.

Aufarbeitung

  1. customcompletion of the reaction
  2. customDMF was evaporated under reduced pressure
  3. customthe residue was precipitated with 5% diethylamine/methanol under sonication
  4. filtrationThe solid was collected by filtration
  5. washwashed with methanol twice
  6. customfurther purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-c2866e6c43e34453b88b34b1815c6351
Quelldatensatz
uspto-grants-2011_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08039470B2

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