Sodium Carbonate → 4-{4-[6-(6-Trifluoromethyl-pyridin-3-ylamino)-pyridin-3-yl]-phenyl}-piperidine-1-carboxylic acid tert-butyl ester

HRID 1404240

Reaktionsgleichung

Reaktionsgleichung von HRID 1404240
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[CH:19]=[CH:18][C:17](B3OC(C)(C)C(C)(C)O3)=[CH:16][CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br[C:30]1[CH:31]=[CH:32][C:33]([NH:36][C:37]2[CH:38]=[N:39][C:40]([C:43]([F:46])([F:45])[F:44])=[CH:41][CH:42]=2)=[N:34][CH:35]=1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][CH:11]([C:14]2[CH:19]=[CH:18][C:17]([C:30]3[CH:35]=[N:34][C:33]([NH:36][C:37]4[CH:38]=[N:39][C:40]([C:43]([F:45])([F:46])[F:44])=[CH:41][CH:42]=4)=[CH:32][CH:31]=3)=[CH:16][CH:15]=2)[CH2:12][CH2:13]1)=[O:7])([CH3:3])([CH3:2])[CH3:4]

Komponenten

5

Edukt 3

HCID 10340Sodium CarbonateHCID 53629760tert-Butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine-1-carboxylateHCID 66615754(5-Bromo-pyridin-2-yl)-(6-trifluoromethyl-pyridin-3-yl)-amine

Produkt 1

HCID 666159164-{4-[6-(6-Trifluoromethyl-pyridin-3-ylamino)-pyridin-3-yl]-phenyl}-piperidine-1-carboxylic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 80711,2-DimethoxyethaneLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

4-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-piperidine-1-carboxylic acid tert-butyl ester (1.56 g, 4.1 mmol) and (5-Bromo-pyridin-2-yl)-(6-trifluoromethyl-pyridin-3-yl)-amine (1.28 g, 4.0 mmol) were dissolved in DME (8 mL) in a pressure vessel, and to the solution was added PdCl2dppf (100 mg, 0.12 mmol) and Na2CO3 (2.0M, 4.0 mL, 8.1 mmol). The mixture was sparged with nitrogen for 10 minutes, then the vessel was sealed and stirred at 80° C. for 18 hours. The mixture was partitioned between EtOAc and saturated aqueous NH4Cl, washed with brine, dried with magnesium sulfate, filtered, and concentrated via rotary evaporation. The crude material was purified via column chromatography on silica gel, eluting with a gradient of EtOAc/hexanes (10-50%) to obtain the target compound as a solid: 1H NMR (400 MHz, DMSO-d6) ppm 1.25 (br. s., 2 H) 1.42 (s, 9 H) 1.52 (qd, J=12.63, 4.55 Hz, 2 H) 1.77 (m, 2 H) 2.66-2.76 (m, 1 H) 4.09 (m, 2 H) 7.03 (d, J=8.59 Hz, 1 H) 7.34 (d, J=8.34 Hz, 2 H) 7.60 (d, J=8.08 Hz, 2 H) 7.79 (d, J=8.84 Hz, 1 H) 7.99 (dd, J=8.72, 2.65 Hz, 1 H) 8.56 (d, J=2.53 Hz, 1 H) 8.91 (d, J=2.53 Hz, 1 H) 9.87 (s, 1 H); MS (M+H)+ 499.3.

Aufarbeitung

  1. customThe mixture was sparged with nitrogen for 10 minutes
  2. customthe vessel was sealed
  3. customThe mixture was partitioned between EtOAc and saturated aqueous NH4Cl
  4. washwashed with brine
  5. dry with materialdried with magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated via rotary evaporation
  8. customThe crude material was purified via column chromatography on silica gel
  9. washeluting with a gradient of EtOAc/hexanes (10-50%)

Quellen und Nachweise

ORD-Eintrag
ord-507adeea34764767aa42e506fa0049cf
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08912208B2

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