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Water → 2-(4-((2S,4R)-1-acetyl-4-((isopropoxycarbonyl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)phenyl)acetic acid

HRID 882250
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 882250
[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:19]=[CH:18][C:17]([CH2:20][C:21]([O:23]CC)=[O:22])=[CH:16][CH:15]=3)=[CH:11][CH:12]=2)[C@H:7]([NH:26][C:27]([O:29][CH:30]([CH3:32])[CH3:31])=[O:28])[CH2:6][C@@H:5]1[CH3:33])(=[O:3])[CH3:2].O.[OH-].[Na+]>CO>[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:19]=[CH:18][C:17]([CH2:20][C:21]([OH:23])=[O:22])=[CH:16][CH:15]=3)=[CH:11][CH:12]=2)[C@H:7]([NH:26][C:27]([O:29][CH:30]([CH3:32])[CH3:31])=[O:28])[CH2:6][C@@H:5]1[CH3:33])(=[O:3])[CH3:2]
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Komponenten

5

Edukt 3

HCID 962WaterHCID 14798Sodium Hydroxide2×HCID 68185396ethyl 2-(4-((2S,4R)-1-acetyl-4-((isopropoxycarbonyl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)phenyl)acetate

Produkt 1

HCID 529352352-(4-((2S,4R)-1-acetyl-4-((isopropoxycarbonyl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)phenyl)acetic acidAusbeute 79 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887
Methanol
Lösungsmittel

Versuchsvorschrift

To a solution of ethyl {4-[(2S,4R)-1-acetyl-2-methyl-4-({[(1-methylethyl)oxy]carbonyl}amino)-1,2,3,4-tetrahydro-6-quinolinyl]phenyl}acetate (for a preparation see Intermediate 49)(270 mg, 0.597 mmol) in MeOH (6 mL) and water (2.0 mL) was added aqueous sodium hydroxide (2N, 0.597 mL, 1.193 mmol) at room temperature and the resulting mixture was stirred for 6 h. Aqueous sodium hydroxide (2N, 0.5 mL) was added and the mixture was left standing overnight. The bulk of MeOH was removed in vacuo and the resulting residue was partitioned between water and Et2O and the layers were separated. The aqueous layer was acidified with hydrochloric acid (2N, 2 mL) and extracted twice with EtOAc. The combined organic phases were dried over MgSO4 and concentrated in vacuo to give {4-[(2S,4R)-1-acetyl-2-methyl-4-({[(1-methylethyl)oxy]carbonyl}amino)-1,2,3,4-tetrahydro-6-quinolinyl]phenyl}acetic acid (200 mg, 0.471 mmol, 79% yield) as a brown foam. This compound was used in the next step without further purification. LCMS (HpH, 2 min), Rt=0.65, MH+=425.

Aufarbeitung

  1. waitthe mixture was left
  2. waitstanding overnight
  3. customThe bulk of MeOH was removed in vacuo
  4. customthe resulting residue was partitioned between water and Et2O
  5. customthe layers were separated
  6. extractionextracted twice with EtOAc
  7. dry with materialThe combined organic phases were dried over MgSO4
  8. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-0075e9788b9c43ab81ab8e83426d0769
Quelldatensatz
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08993554B2

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