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Potassium Carbonate → tert-Butyl 4-(2-(1-(5-cyclopropylpyrimidin-2-yl)piperidin-4-yl)-2-methyl-2,3-dihydrobenzofuran-5-yl)-5,6-dihydropyridine-1(2H)-carboxylate

HRID 1025512
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1025512
Br[C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([CH:11]3[CH2:16][CH2:15][N:14]([C:17]4[N:22]=[CH:21][C:20]([CH:23]5[CH2:25][CH2:24]5)=[CH:19][N:18]=4)[CH2:13][CH2:12]3)([CH3:10])[CH2:7][C:6]=2[CH:26]=1.CC1(C)C(C)(C)OB([C:35]2[CH2:40][CH2:39][N:38]([C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:37][CH:36]=2)O1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH:23]1([C:20]2[CH:19]=[N:18][C:17]([N:14]3[CH2:15][CH2:16][CH:11]([C:8]4([CH3:10])[CH2:7][C:6]5[CH:26]=[C:2]([C:35]6[CH2:40][CH2:39][N:38]([C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:37][CH:36]=6)[CH:3]=[CH:4][C:5]=5[O:9]4)[CH2:12][CH2:13]3)=[N:22][CH:21]=2)[CH2:25][CH2:24]1
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Komponenten

7

Edukt 3

HCID 11430Potassium CarbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 674689412-(4-(5-Bromo-2-methyl-2,3-dihydrobenzofuran-2-yl)piperidin-1-yl)-5-cyclopropylpyrimidine

Produkt 1

HCID 68211506tert-Butyl 4-(2-(1-(5-cyclopropylpyrimidin-2-yl)piperidin-4-yl)-2-methyl-2,3-dihydrobenzofuran-5-yl)-5,6-dihydropyridine-1(2H)-carboxylate
Ausbeute 68,3 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittel2×HCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a degassed solution of 2-(4-(5-bromo-2-methyl-2,3-dihydrobenzofuran-2-yl)piperidin-1-yl)-5-cyclopropylpyrimidine (424 mg, 1.02 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (380 mg, 1.23 mmol), and K2CO3 (424 mg, 3.07 mmol) in dioxane (6 mL) and water (2 mL) was added Pd(Ph3P)4 (59.1 mg, 0.051 mmol). Upon completion of addition, the reaction mixture was heated in 100° C. oil bath for 3 hours. After this time, the reaction mixture was cooled to room temperature, diluted with water, and extracted with CH2Cl2 (3×5 mL). The combined organic layers were dried (Na2SO4), filtered, and concentrated to yield a residue. The residue was purified by column chromatography (silica gel, hexanes/EtOAc gradient 0 to 50% EtOAc) to afford Compound 11F as a white solid (360 mg, 0.697 mmol, 68% yield). 1H NMR (500 MHz, CDCl3) δ ppm 8.11 (s, 2 H), 7.15 (s, 1 H), 7.13 (d, J=8.5 Hz, 1 H), 6.65-6.71 (m, 1 H), 5.88 (br. s., 1 H), 4.75-4.87 (m, 2 H), 4.05 (br. s., 2 H), 3.73 (t, J=6.2 Hz, 1 H), 3.62 (t, J=5.5 Hz, 2 H), 3.16 (d, J=15.7 Hz, 1 H), 2.74-2.87 (m, 2 H), 2.39-2.54 (m, 2 H), 1.86-1.96 (m, 2 H), 1.76-1.84 (m, 1 H), 1.67-1.74 (m, 1 H), 1.61 (m, 1 H), 1.49 (s, 9 H), 1.37-1.41 (m, 3 H), 1.23-1.36 (m, 1 H), 0.84-0.92 (m, 2 H), 0.54-0.60 (m, 2 H). LC/MS (m/z)=517 (M+H)+.

Aufarbeitung

  1. additionUpon completion of addition
  2. temperatureAfter this time, the reaction mixture was cooled to room temperature
  3. extractionextracted with CH2Cl2 (3×5 mL)
  4. dry with materialThe combined organic layers were dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customto yield a residue
  8. customThe residue was purified by column chromatography (silica gel, hexanes/EtOAc gradient 0 to 50% EtOAc)

Quellen und Nachweise

ORD-Eintrag
ord-3a1f12e0bbd94774963acd83fe6af1b3
Quelldatensatz
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08729084B2

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