Methanol → 3-(Isopropyl(methyl)amino)-2-(3-methoxyphenyl)quinoxaline-6-carboxylic acid

HRID 1405578ノート

反応式

HRID 1405578 の反応式
[CH:1]([N:4]([CH3:27])[C:5]1[C:6]([C:19]2[CH:24]=[CH:23][CH:22]=[C:21]([O:25][CH3:26])[CH:20]=2)=[N:7][C:8]2[C:13]([N:14]=1)=[CH:12][C:11]([C:15]([O:17]C)=[O:16])=[CH:10][CH:9]=2)([CH3:3])[CH3:2].CO.[OH-].[Na+]>O>[CH:1]([N:4]([CH3:27])[C:5]1[C:6]([C:19]2[CH:24]=[CH:23][CH:22]=[C:21]([O:25][CH3:26])[CH:20]=2)=[N:7][C:8]2[C:13]([N:14]=1)=[CH:12][C:11]([C:15]([OH:17])=[O:16])=[CH:10][CH:9]=2)([CH3:3])[CH3:2]

参加物

5

反応条件

温度
50 °C

実験手順

Into a 50-mL round-bottom flask, was placed methyl 3-(isopropyl(methyl)amino)-2-(3-methoxyphenyl)quinoxaline-6-carboxylate (50 mg, 0.14 mmol, 1.00 equiv), methanol (10 mL), sodium hydroxide (27.4 mg, 0.69 mmol, 5.00 equiv), water (2 mL). The resulting solution was stirred for 2 hs at 50° C. in an oil bath. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with 20 mL of H2O. The pH value of the aqueous solution was adjusted to 4-5 with hydrogen chloride (1 mol/L). The resulting solids were collected by filtration. This resulted in 20 mg (41%) of 3-(isopropyl(methyl)amino)-2-(3-methoxyphenyl)quinoxaline-6-carboxylic acid as a yellow solid.

後処理

  1. customInto a 50-mL round-bottom flask, was placed
  2. concentrationThe resulting mixture was concentrated under vacuum
  3. additionThe resulting solution was diluted with 20 mL of H2O
  4. filtrationThe resulting solids were collected by filtration
  5. customThis resulted in 20 mg (41%) of 3-(isopropyl(methyl)amino)-2-(3-methoxyphenyl)quinoxaline-6-carboxylic acid as a yellow solid

出典と根拠

ORDレコード
ord-2efdfbc6a4174fbc9719ab6e1256eba0
出典データセット
uspto-grants-2014_12
特許番号
US08916560B2

反応ノート

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