Sodium Sulfite → (S)-2-(2-amino-7-(4-chlorophenyl)-5-methylbenzo[d]thiazol-6-yl)-2-tert-butoxyacetic acid

HRID 879276Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 879276
[NH2:1][C:2]1[S:3][C:4]2[C:10]([C:11]3[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=3)=[C:9]([C@H:18]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH2:19][OH:20])[C:8]([CH3:26])=[CH:7][C:5]=2[N:6]=1.[O-:27]S([O-])=O.[Na+].[Na+]>C(#N)C.O.CCOC(C)=O>[NH2:1][C:2]1[S:3][C:4]2[C:10]([C:11]3[CH:12]=[CH:13][C:14]([Cl:17])=[CH:15][CH:16]=3)=[C:9]([C@H:18]([O:21][C:22]([CH3:23])([CH3:25])[CH3:24])[C:19]([OH:27])=[O:20])[C:8]([CH3:26])=[CH:7][C:5]=2[N:6]=1

Komponenten

6

Versuchsvorschrift

To a solution of (S)-2-(2-amino-7-(4-chlorophenyl)-5-methylbenzo[d]thiazol-6-yl)-2-tert-butoxyethanol (1.95 g, 5.00 mmol) in acetonitrile (25 mL) and water (1 mL) was added H51O6 (1.37 g, 6.00 mmol) and CrO3 (1.00 g, 10.0 mmol). The mixture was stirred at room temperature for 1 h and was diluted with EtOAc (50 mL) and a saturated solution of Na2SO3 (50 mL). The layers were separated, and the aqueous layer was extracted with EtOAc. The crude material was taken on without further purification. 1H-NMR: 400 MHz, (CDCl3) δ: 7.42-7.61 (m, 4H), 7.20 (s, 1H), 5.11 (s, 1H), 2.47 (s, 3H), 0.93 (s, 9H).

Aufarbeitung

  1. customThe layers were separated
  2. extractionthe aqueous layer was extracted with EtOAc
  3. customThe crude material was taken on without further purification

Quellen und Nachweise

ORD-Eintrag
ord-eafd17636f1141ed8baeb94834594f64
Quelldatensatz
uspto-grants-2015_03
Patentnummer
US08987250B2

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