Water → (R)-2-(benzo[d][1,3]dioxol-5-yl)-3-(2-methylpyrrolidin-1-yl)quinoxaline-6-carboxylic acid

HRID 1403498Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1403498
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3[C:19]([N:20]4[CH2:24][CH2:23][CH2:22][C@H:21]4[CH3:25])=[N:18][C:17]4[C:12](=[CH:13][CH:14]=[C:15]([C:26]([O:28]C)=[O:27])[CH:16]=4)[N:11]=3)=[CH:9][C:4]=2[O:3][CH2:2]1.[OH-].[Na+].O>CO>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3[C:19]([N:20]4[CH2:24][CH2:23][CH2:22][C@H:21]4[CH3:25])=[N:18][C:17]4[C:12](=[CH:13][CH:14]=[C:15]([C:26]([OH:28])=[O:27])[CH:16]=4)[N:11]=3)=[CH:9][C:4]=2[O:3][CH2:2]1

Komponenten

5

Edukt 3

HCID 962WaterHCID 14798Sodium HydroxideHCID 60171730(R)-methyl 2-(benzo[d][1,3]dioxol-5-yl)-3-(2-methylpyrrolidin-1-yl)quinoxaline-6-carboxylate

Produkt 1

HCID 70664637(R)-2-(benzo[d][1,3]dioxol-5-yl)-3-(2-methylpyrrolidin-1-yl)quinoxaline-6-carboxylic acidAusbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

To a solution of (R)-methyl 2-(benzo[d][1,3]dioxol-5-yl)-3-(2-methylpyrrolidin-1-yl)quinoxaline-6-carboxylate (120 mg, 0.31 mmol) in methanol (25 mL) was added sodium hydroxide (37.2 mg, 0.93 mmol) and water (2 mL). The resulting solution was stirred overnight at room temperature and concentrated under vacuum. The residue was dissolved in water (20 mL) and adjusted pH to 5 with hydrochloric acid (3N). The solids were collected by filtration to afford (R)-2-(benzo[d][1,3]dioxol-5-yl)-3-(2-methylpyrrolidin-1-yl)quinoxaline-6-carboxylic acid as a yellow solid (90 mg, 78%).

Aufarbeitung

  1. concentrationconcentrated under vacuum
  2. dissolutionThe residue was dissolved in water (20 mL)
  3. filtrationThe solids were collected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-19ccd51b76f94bb3a59fe7cc5d2a8781
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08912188B2

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