Water → Carbamic acid, [4-[1-[(4-methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridin-3-yl]-2-thienyl]-, 1,1-dimethylethyl ester (9CI)

HRID 2108747Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2108747
CC1(C)C(C)(C)OB([C:9]2[C:17]3[C:12](=[N:13][CH:14]=[CH:15][CH:16]=3)[N:11]([S:18]([C:21]3[CH:27]=[CH:26][C:24]([CH3:25])=[CH:23][CH:22]=3)(=[O:20])=[O:19])[CH:10]=2)O1.Br[C:30]1[CH:31]=[C:32]([NH:35][C:36](=[O:42])[O:37][C:38]([CH3:41])([CH3:40])[CH3:39])[S:33][CH:34]=1.C(=O)([O-])[O-].[K+].[K+].O>COCCOC.CCOC(C)=O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[S:18]([N:11]1[C:12]2=[N:13][CH:14]=[CH:15][CH:16]=[C:17]2[C:9]([C:30]2[CH:31]=[C:32]([NH:35][C:36](=[O:42])[O:37][C:38]([CH3:40])([CH3:39])[CH3:41])[S:33][CH:34]=2)=[CH:10]1)([C:21]1[CH:27]=[CH:26][C:24]([CH3:25])=[CH:23][CH:22]=1)(=[O:20])=[O:19]

Komponenten

8

Edukt 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 497589593-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridineHCID 56763855tert-Butyl (4-bromothiophen-2-yl)carbamate

Produkt 1

HCID 57633069Carbamic acid, [4-[1-[(4-methylphenyl)sulfonyl]-1H-pyrrolo[2,3-b]pyridin-3-yl]-2-thienyl]-, 1,1-dimethylethyl ester (9CI)Ausbeute 38 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 11979704Tetrakis(triphenylphosphine)palladiumKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine (398 mg, 1 mmol), tert-butyl 4-bromothiophen-2-ylcarbamate (190 mg, 0.68 mmol), potassium carbonate (310 mg, 2.25 mmol), and tetrakis(triphenylphosphine) palladium (0) (20 mg) were combined in 4 mL DME, 1 mL water, and heated to 160° C. in the microwave for 10 minutes, followed by 170° C. for 10 minutes. The reaction mixture was diluted with EtOAc and washed with saturated sodium bicarbonate. The organic layer was filtered through celite and concentrated to an oil which was purified by column chromatography on silica (15 to 60% EtOAc/hexanes) to give the product as a brown foam, 0.12 g, 0.26 mmol, 38% yield. MH+ 470.1.

Aufarbeitung

  1. washwashed with saturated sodium bicarbonate
  2. filtrationThe organic layer was filtered through celite
  3. concentrationconcentrated to an oil which
  4. customwas purified by column chromatography on silica (15 to 60% EtOAc/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-c4759cfd080a4d46afb88938193b4649
Quelldatensatz
uspto-grants-2009_04
Patentnummer
US07514448B2

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