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Water → 3-(Benzyloxy)-N-(4-methylthiazol-2-yl)-5-(pyridin-3-yl)pyridin-2-amine dihydrochloride

HRID 1426118
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Reaktionsgleichung

Reaktionsgleichung von HRID 1426118
[ClH:1].[CH2:2]([O:9][C:10]1[C:11]([NH:17][C:18]2[S:19][CH:20]=[C:21]([CH3:23])[N:22]=2)=[N:12][CH:13]=[C:14](Br)[CH:15]=1)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[N:24]1[CH:29]=[CH:28][CH:27]=[C:26](B(O)O)[CH:25]=1.C(=O)([O-])[O-].[Na+].[Na+].O>COCCOC.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[ClH:1].[ClH:1].[CH2:2]([O:9][C:10]1[C:11]([NH:17][C:18]2[S:19][CH:20]=[C:21]([CH3:23])[N:22]=2)=[N:12][CH:13]=[C:14]([C:26]2[CH:25]=[N:24][CH:29]=[CH:28][CH:27]=2)[CH:15]=1)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1
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Komponenten

7

Edukt 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 27343783-Pyridinylboronic acidHCID 160614653-(benzyloxy)-5-bromo-N-(4-methylthiazol-2-yl)pyridin-2-amine hydrochloride

Produkt 1

HCID 866396683-(Benzyloxy)-N-(4-methylthiazol-2-yl)-5-(pyridin-3-yl)pyridin-2-amine dihydrochloride

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysator
HCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

3-(Benzyloxy)-5-bromo-N-(4-methylthiazol-2-yl)pyridin-2-amine (prepared according to Example 1; 0.125 g, 0.332 mmol), pyridin-3-ylboronic acid (0.0490 g, 0.399 mmol), bis(triphenylphosphine)palladium(II) chloride (0.00700 g, 0.00997 mmol), and sodium carbonate (0.106 g, 0.997 mmol) were combined in DME (10 mL), and water (5 mL) and heated overnight at 80° C. The reaction mixture was cooled and partitioned between dichloromethane and water. The layers were separated, and the organic layer was dried, filtered, and concentrated. The residue was purified by silica gel chromatography to afford the title compound as the free base. The free base was dissolved in dichloromethane and 2M HCl in ether was added. The mixture was concentrated to afford 3-(benzyloxy)-N-(4-methylthiazol-2-yl)-5-(pyridin-3-yl)pyridin-2-amine dihydrochloride (0.109 g, 87.6% yield). 1H NMR (DMSO-d6) δ 9.27 (m, 1H), 8.81 (d, 1H), 8.75 (d, 1H), 8.48 (d, 1H), 8.08 (m, 1H), 7.97 (m, 1H), 7.66 (d, 2H), 7.43 (m, 2H), 7.37 (m, 1H), 6.82 (s, 1H), 5.45 (s, 2H), 2.31 (s, 3H). Mass spectrum (apci) m/z=375.1 (M+H-2HCl).

Aufarbeitung

  1. temperatureThe reaction mixture was cooled
  2. custompartitioned between dichloromethane and water
  3. customThe layers were separated
  4. customthe organic layer was dried
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b25edb966612475084fe8f81df0909bf
Quelldatensatz
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08933077B2

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