Water → 2,6-Difluoro-3-[4'-(4-methoxy-phenyl)-[2,5']bithiazolyl-2'-ylmethoxy]-benzamide

HRID 415597Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 415597
Br[C:2]1[S:6][C:5]([CH2:7][O:8][C:9]2[C:10]([F:19])=[C:11]([C:15]([F:18])=[CH:16][CH:17]=2)[C:12]([NH2:14])=[O:13])=[N:4][C:3]=1[C:20]1[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=1.C([Sn](CCCC)(CCCC)[C:33]1[S:34][CH:35]=[CH:36][N:37]=1)CCC.O>CN(C=O)C.[Pd].C1(P(C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[F:19][C:10]1[C:9]([O:8][CH2:7][C:5]2[S:6][C:2]([C:33]3[S:34][CH:35]=[CH:36][N:37]=3)=[C:3]([C:20]3[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=3)[N:4]=2)=[CH:17][CH:16]=[C:15]([F:18])[C:11]=1[C:12]([NH2:14])=[O:13]

Komponenten

6

Edukt 3

HCID 962WaterHCID 27632592-(Tributylstannyl)-1,3-thiazoleHCID 594026583-[5-Bromo-4-(4-methoxy-phenyl)-thiazol-2-ylmethoxy]-2,6-difluoro-benzamide

Produkt 1

HCID 594027082,6-Difluoro-3-[4'-(4-methoxy-phenyl)-[2,5']bithiazolyl-2'-ylmethoxy]-benzamideAusbeute 3,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 57646695Palladium;tetraphenyl-lambda5-phosphaneKatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

To a solution of 3-[5-bromo-4-(4-methoxy-phenyl)-thiazol-2-ylmethoxy]-2,6-difluoro-benzamide (0.1 g, 0.2 mmol) in 5 ml of anhydrous DMF was added 2-tributylstannyl thiazole (0.071 g, 0.2 mmol) and degassed the reaction mixture for the 10 minutes. Then added tetraphenylphosphine palladium (0) (0.026 g, 0.2 mmol). The reaction mixture was heated at 120° C. for 12 h under the nitrogen atmosphere. Then reaction mixture was cooled to rt. 100 ml of water was added into it and extracted the compound with ethyl acetate, The combined organic layers were dried over anhydrous Na2SO4, and evaporated to dryness under reduced pressure. The compound was purified by column chromatography on silica (230-400μ) using ethyl acetate (40:60) as the eluent to provide the title compound as yellow solid (0.003 g, 3%). 1H NMR (DMSO-d6, 400 MHz): δ 3.82 (s, 3H), 5.57 (s, 2H), 7.06 (d, 1H, J=8.4 Hz (o-coupling), 7.13 (dt, 1H), 7.39-7.47 (m, 1H), 7.51 (d, 2H, J=8.4 Hz (o-coupling), 7.52-7.58 (m, 1H), 7.59-7.86 (m, 2H), 7.68 (d, 1 H, J=3.2 Hz), 7.84 (d, 1 H, J=3.2 Hz), 7.89 (broad s, 1H), 8.18 (broad s, 1H), 9.12 (s, 1H); MS ES+ (460.01), HPLC (method 5) Rt=15.64 min.

Aufarbeitung

  1. customdegassed the reaction mixture for the 10 minutes
  2. customThen reaction mixture
  3. temperaturewas cooled to rt
  4. extractionextracted the compound with ethyl acetate
  5. dry with materialThe combined organic layers were dried over anhydrous Na2SO4
  6. customevaporated to dryness under reduced pressure
  7. customThe compound was purified by column chromatography on silica (230-400μ)

Quellen und Nachweise

ORD-Eintrag
ord-b0d8efd0bf4d4deb90d27731a1329d29
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08088791B2

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