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Diethyl Ether → 2-(3-(allyloxy)phenyl]-N-cyclopentyl-3-[2-(cyclopentylamino)-4-pyrimidinyl]imidazo[1,2-a]pyridin-8-amine

HRID 456700
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Reaktionsgleichung

Reaktionsgleichung von HRID 456700
[CH:1]1([NH:6][C:7]2[C:8]3[N:9]([C:13]([C:23]4[CH:28]=[CH:27][N:26]=[C:25]([NH:29][CH:30]5[CH2:34][CH2:33][CH2:32][CH2:31]5)[N:24]=4)=[C:14]([C:16]4[CH:17]=[C:18]([OH:22])[CH:19]=[CH:20][CH:21]=4)[N:15]=3)[CH:10]=[CH:11][CH:12]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:41](Br)[CH:42]=[CH2:43].CCOCC>CN(C)C=O.O>[CH2:43]([O:22][C:18]1[CH:17]=[C:16]([C:14]2[N:15]=[C:8]3[C:7]([NH:6][CH:1]4[CH2:5][CH2:4][CH2:3][CH2:2]4)=[CH:12][CH:11]=[CH:10][N:9]3[C:13]=2[C:23]2[CH:28]=[CH:27][N:26]=[C:25]([NH:29][CH:30]3[CH2:34][CH2:33][CH2:32][CH2:31]3)[N:24]=2)[CH:21]=[CH:20][CH:19]=1)[CH:42]=[CH2:41]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 3283Diethyl EtherHCID 7841Allyl bromideHCID 10796Cesium carbonateHCID 101390603-[8-(Cyclopentylamino)-3-[2-(cyclopentylamino)pyrimidin-4-yl]imidazo[1,2-a]pyridin-2-yl]phenol

Produkt 1

HCID 101414512-(3-(allyloxy)phenyl]-N-cyclopentyl-3-[2-(cyclopentylamino)-4-pyrimidinyl]imidazo[1,2-a]pyridin-8-amineAusbeute 77 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 3-{8-(cyclopentylamino)-3-[2-(cyclopentylamino)-4-pyrimidinyl]imidazo[1,2-α]pyridin-2-yl}phenol (12 mg, 0.03 mmol) in N,N-dimethylformamide was added cesium carbonate (11 mg, 0.04 mmol) followed by allyl bromide (0.1 mL, 1.15 mmol). The resulting mixture was stirred at room temperature for 5 hours. Ether was added followed by water. The organic layer was washed with brine. The aqueous layer was extracted with ether and the combined organics were dried over magnesium sulfate. Filtration and concentration followed by flash chromatography (2:1 hexanes:ethyl acetate) provided 2-[3-(allyloxy)phenyl]-N-cyclopentyl-3-[2-(cyclopentylamino)-4-pyrimidinyl]imidazo[1,2-α]pyridin-8-amine (10 mg, 77%) as an oil. 1H NMR (CDCl3): δ 8.87 (broad, 1H), 8.01 (d, 1H), 7.30 (t, 1H), 7.20–7.17 (m, 2H), 6.95 (m, 1H), 6.78 (t, 1H), 6.38 (d, 1H), 6.28 (d, 1H), 6.03 (m, 1H), 30 5.43–5.24 (m, 4H), 4.54 (d, 2H), 4.34 (m, 1H), 3.91 (m, 1H), 2.12–2.04 (m, 4H), 1.82–1.55 (m, 12H); MS m/z 495 (M+1). This material was treated with anhydrous hydrochloric acid in ether to provide the corresponding hydrochoride salt as a yellow solid.

Aufarbeitung

  1. washThe organic layer was washed with brine
  2. extractionThe aqueous layer was extracted with ether
  3. dry with materialthe combined organics were dried over magnesium sulfate
  4. filtrationFiltration and concentration

Quellen und Nachweise

ORD-Eintrag
ord-3369ef6d311840b7a5b9b14ec8c9e975
Quelldatensatz
uspto-grants-2007_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07186714B2

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