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Cesium carbonate → (1-{3-[Benzothiazol-2-yl-(1-methylpiperidin-4-yloxy)methyl]phenyl}pyrrolidin-3-yl)carbamic acid tert-butyl ester

HRID 2404464
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2404464
I[C:2]1[CH:3]=[C:4]([CH:8]([O:18][CH:19]2[CH2:24][CH2:23][N:22]([CH3:25])[CH2:21][CH2:20]2)[C:9]2[S:10][C:11]3[CH:17]=[CH:16][CH:15]=[CH:14][C:12]=3[N:13]=2)[CH:5]=[CH:6][CH:7]=1.C(C1CCCCC1=O)(=O)C(C)C.C(=O)([O-])[O-].[Cs+].[Cs+].[C:44]([NH:51][CH:52]1[CH2:56][CH2:55][NH:54][CH2:53]1)([O:46][C:47]([CH3:50])([CH3:49])[CH3:48])=[O:45]>[Cu]I.CN(C)C=O>[C:47]([O:46][C:44](=[O:45])[NH:51][CH:52]1[CH2:56][CH2:55][N:54]([C:2]2[CH:7]=[CH:6][CH:5]=[C:4]([CH:8]([C:9]3[S:10][C:11]4[CH:17]=[CH:16][CH:15]=[CH:14][C:12]=4[N:13]=3)[O:18][CH:19]3[CH2:24][CH2:23][N:22]([CH3:25])[CH2:21][CH2:20]3)[CH:3]=2)[CH2:53]1)([CH3:50])([CH3:48])[CH3:49]
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Komponenten

7

Edukt 4

HCID 10796Cesium carbonateHCID 2757234tert-butyl N-(pyrrolidin-3-yl)carbamateHCID 114693012-(2-Methylpropanoyl)cyclohexan-1-oneHCID 569474582-[(3-Iodophenyl)(1-methylpiperidin-4-yloxy)methyl]benzothiazole

Produkt 1

HCID 67512942(1-{3-[Benzothiazol-2-yl-(1-methylpiperidin-4-yloxy)methyl]phenyl}pyrrolidin-3-yl)carbamic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
55 °C

Versuchsvorschrift

A screw-capped tube is charged with 2-[(3-iodophenyl)(1-methylpiperidin-4-yloxy)methyl]benzothiazole (example 41, 200 mg), copper(I) iodide (7 mg), 2-isobutyrylcyclohexanone (25 mg), cesium carbonate (280 mg), 3-(Boc-amino)pyrrolidine (160 mg) and anhydrous N,N-dimethylformamide (1 mL). The tube is evacuated, filled with argon and sealed. After stirring at 55° C. for 4 days, the mixture is diluted with ethyl acetate, water and ammonia. After decantation, the aqueous phase is extracted with ethyl acetate. The pooled organic extracts are dried over magnesium sulfate and concentrated under reduced pressure. The residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 98/2/0.5 to 95/5/0.5), to afford (1-{3-[benzothiazol-2-yl-(1-methylpiperidin-4-yloxy)methyl]phenyl}pyrrolidin-3-yl)carbamic acid tert-butyl ester.

Aufarbeitung

  1. customThe tube is evacuated
  2. additionfilled with argon
  3. customsealed
  4. additionthe mixture is diluted with ethyl acetate, water and ammonia
  5. extractionAfter decantation, the aqueous phase is extracted with ethyl acetate
  6. dry with materialThe pooled organic extracts are dried over magnesium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 98/2/0.5 to 95/5/0.5)

Quellen und Nachweise

ORD-Eintrag
ord-e606802f4fcd4340861a1190a29cda1b
Quelldatensatz
uspto-grants-2014_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08802664B2

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