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Potassium Carbonate → Methyl 4-((2s)-2-{[(tert-butoxycarbonyl)((2s)-2-{[tert-butyl(dimethyl)silyl]oxy}-3-phenoxypropyl)amino]methyl}-3,4-dihydro-2h-chromen-6-yl)-2-hydroxybenzoate

HRID 47694
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 47694
[Si:1]([O:8][C@H:9]([CH2:43][O:44][C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1)[CH2:10][N:11]([CH2:19][C@@H:20]1[CH2:29][CH2:28][C:27]2[C:22](=[CH:23][CH:24]=[C:25]([C:30]3[CH:31]=[CH:32][C:33]4[C:38](=[O:39])[O:37][C:36](C)(C)[O:35][C:34]=4[CH:42]=3)[CH:26]=2)[O:21]1)[C:12](=[O:18])[O:13][C:14]([CH3:17])([CH3:16])[CH3:15])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].C(=O)([O-])[O-].[K+].[K+]>CO>[C:14]([O:13][C:12]([N:11]([CH2:19][C@@H:20]1[CH2:29][CH2:28][C:27]2[C:22](=[CH:23][CH:24]=[C:25]([C:30]3[CH:31]=[CH:32][C:33]([C:38]([O:37][CH3:36])=[O:39])=[C:34]([OH:35])[CH:42]=3)[CH:26]=2)[O:21]1)[CH2:10][C@H:9]([O:8][Si:1]([C:4]([CH3:5])([CH3:7])[CH3:6])([CH3:3])[CH3:2])[CH2:43][O:44][C:45]1[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=1)=[O:18])([CH3:15])([CH3:16])[CH3:17]
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Komponenten

4

Edukt 2

HCID 11430Potassium CarbonateHCID 86587740tert-butyl (2S)-2-{[tert-butyl(dimethyl)silyl]oxy}-3-phenoxypropyl{[(2S)-6-(2,2-dimethyl-4-oxo-4H-1,3-benzodioxin-7-yl)-3,4-dihydro-2H-chromen-2-yl]methyl}carbamate

Produkt 1

HCID 69895945Methyl 4-((2s)-2-{[(tert-butoxycarbonyl)((2s)-2-{[tert-butyl(dimethyl)silyl]oxy}-3-phenoxypropyl)amino]methyl}-3,4-dihydro-2h-chromen-6-yl)-2-hydroxybenzoateAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887
Methanol
Lösungsmittel

Versuchsvorschrift

To a solution of Example 204 (0.8 g, 1.14 mmol, 1.0 eq.) in methanol (10 mL) was added potassium carbonate (0.078 g, 0.57 mmol, 0.5 eq.) at room temperature. The reaction mixture was allowed to stir at room temperature for 18 hours and then concentrated under reduced pressure. The resulting residue was washed with distilled water (10 mL) and extracted with ethyl acetate (3×10 mL). The combined extracts were dried over magnesium sulfate, filtered and concentrated under reduced pressure to afford the desired product as pale yellow oil (0.75 g, 97%). 1H NMR (CDCl3) δ10.68 (s, 1 H), 7.73 (d, 1H), 7.26-7.14 (m, 4H), 6.94 (dd, 1H), 6.86-6.75 (m, 5H), 4.21-4.02 (m, 2H), 3.83 (s, 3H), 3.80-3.56 (m, 4H), 3.40-3.21 (m, 2H), 2.80-2.67 (m, 2H), 1.95-1.92 (m, 1H), 1.65-1.60 (m, 1H), 1.38 (s, 9H), 0.83 (s, 9H), 0.001 (s, 6H).

Aufarbeitung

  1. concentrationconcentrated under reduced pressure
  2. washThe resulting residue was washed with distilled water (10 mL)
  3. extractionextracted with ethyl acetate (3×10 mL)
  4. dry with materialThe combined extracts were dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-479d7073bf434ca5af8b75d104644ba6
Quelldatensatz
uspto-grants-2004_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06699860B2

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