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tert-Butanol → (1R)-1-[(4S)-7-(3,5-Dimethylisoxazol-4-yl)-4-pyridin-2-yl-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazin-2-yl]ethane-1,2-diol

HRID 589080
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 589080
[CH3:1][C:2]1[C:6]([C:7]2[C:16]3[O:15][CH2:14][C@H:13]([C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][N:18]=4)[N:12]4C(C=C)=[N:24][C:10]([C:11]=34)=[CH:9][CH:8]=2)=[C:5]([CH3:27])[O:4][N:3]=1.S([O-])([O-])=[O:29].[Na+].[Na+].[C:34]([OH:38])([CH3:37])([CH3:36])C>O>[CH3:1][C:2]1[C:6]([C:7]2[C:16]3[O:15][CH2:14][C@H:13]([C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][N:18]=4)[N:12]4[C:36]([C@@H:34]([OH:38])[CH2:37][OH:29])=[N:24][C:10]([C:11]=34)=[CH:9][CH:8]=2)=[C:5]([CH3:27])[O:4][N:3]=1
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Komponenten

5

Edukt 3

HCID 6386tert-ButanolHCID 24437Sodium SulfiteHCID 86299165(4S)-7-(3,5-Dimethylisoxazol-4-yl)-4-pyridin-2-yl-2-vinyl-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazine

Produkt 1

HCID 90409036(1R)-1-[(4S)-7-(3,5-Dimethylisoxazol-4-yl)-4-pyridin-2-yl-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazin-2-yl]ethane-1,2-diolAusbeute 50 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962
Water
Lösungsmittel

Versuchsvorschrift

(4S)-7-(3,5-Dimethylisoxazol-4-yl)-4-pyridin-2-yl-2-vinyl-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazine (40 mg, 0.1 mmol) was dissolved in tert-butyl alcohol (4 mL) and water (4 mL). To the resulting solution, the mixture of A-D mixβ (300 mg, 0.7 mmol) [Aldrich, cat. #392766] was added at room temperature. The resulting mixture was stirred overnight. Saturated aqueous sodium sulfite (2 mL) was added and the suspension was stirred for 15 min at room temperature. The mixture was then extracted with dichloromethane. The organic extracts were combined, washed with brine, dried over sodium sulfate, filtered, and concentrated. Purification by preparative LCMS (XBridge C18 column, eluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 60 mL/min) afforded the desired product (0.021 g, 50%). LCMS for C21H21O4N4 (M+H)+: calculated m/z=393.2. found 393.2.

Aufarbeitung

  1. additionTo the resulting solution, the mixture of A-D mixβ (300 mg, 0.7 mmol) [Aldrich, cat. #392766]
  2. additionwas added at room temperature
  3. stirringthe suspension was stirred for 15 min at room temperature
  4. extractionThe mixture was then extracted with dichloromethane
  5. washwashed with brine
  6. dry with materialdried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customPurification by preparative LCMS (XBridge C18 column
  10. washeluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 60 mL/min)

Quellen und Nachweise

ORD-Eintrag
ord-87ecf3e0b9dd4094a9c621e987921a49
Quelldatensatz
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09227985B2

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