Trifluoroacetic acid → (6aR,7S,9aS,11S,13aS)-11-amino-5-benzyloxy-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-6a,7,10,10-tetramethyl-3-oxo-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole

HRID 1417617Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1417617
[NH2:1][C@@H:2]1[C:38]([CH3:40])([CH3:39])[C@H:37]2[C@@:5]3([O:33][C:9]4[C:10]5[CH2:11][N:12](C(OC(C)(C)C)=O)[C:13](=[O:25])[C:14]=5[CH:15]=[C:16]([O:17][CH2:18][C:19]5[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=5)[C:8]=4[CH2:7][C@:6]3([CH3:42])[C@@H:34]([CH3:41])[CH2:35][CH2:36]2)[CH2:4][CH2:3]1.C1(OC)C=CC=CC=1.FC(F)(F)C(O)=O.C(=O)([O-])O.[Na+]>ClCCl>[NH2:1][C@@H:2]1[C:38]([CH3:40])([CH3:39])[C@H:37]2[C@@:5]3([O:33][C:9]4[C:10]5[CH2:11][NH:12][C:13](=[O:25])[C:14]=5[CH:15]=[C:16]([O:17][CH2:18][C:19]5[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=5)[C:8]=4[CH2:7][C@:6]3([CH3:42])[C@@H:34]([CH3:41])[CH2:35][CH2:36]2)[CH2:4][CH2:3]1

Komponenten

6

Edukt 4

HCID 6422Trifluoroacetic acidHCID 7519AnisoleHCID 516892Sodium BicarbonateHCID 86753816(6aR,7S,9aS,11S,13aS)-11-amino-5-benzyloxy-2-(t-butoxycarbonyl)-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-6a,7,10,10-tetramethyl-3-oxo-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole

Produkt 1

HCID 86753817(6aR,7S,9aS,11S,13aS)-11-amino-5-benzyloxy-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-6a,7,10,10-tetramethyl-3-oxo-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindoleAusbeute 73 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of Compound (45a) (50 mg, 0.087 mmol) in 5 ml of dry dichloromethane were added 30 μl (0.28 mmol) of anisole and 35 μl (0.45 mmol) of trifluoroacetic acid, and the mixture stirred for 3 hours at room temperature. Under ice-cooling, to the reaction mixture was added an aqueous saturated sodium hydrogen carbonate solution, followed by extraction with ethyl acetate. The extract was washed with water and an aqueous saturated sodium hydrogen carbonate solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure to give 30 mg (73%) of the crude Compound (46a) as a powdery material.

Aufarbeitung

  1. temperatureUnder ice-cooling, to the reaction mixture
  2. extractionfollowed by extraction with ethyl acetate
  3. washThe extract was washed with water
  4. dry with materialan aqueous saturated sodium hydrogen carbonate solution, dried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-b2f34ff962b04615a97094c1659273e9
Quelldatensatz
uspto-grants-1999_03
Patentnummer
US05876984

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