Lithium hydroxide, monohydrate → {2,5-Dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-acetic acid

HRID 1967010ノート

反応式

HRID 1967010 の反応式
C[O:2][C:3](=[O:38])[CH2:4][NH:5][C:6](=[O:37])[C:7]1[CH:12]=[C:11]([Cl:13])[C:10]([O:14][C:15]2[CH:20]=[CH:19][N:18]=[CH:17][C:16]=2[C:21]([N:23]2[C:32]3[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=3)[N:26]([CH:33]3[CH2:35][CH2:34]3)[CH2:25][CH2:24]2)=[O:22])=[CH:9][C:8]=1[Cl:36].O.[OH-].[Li+]>O1CCOCC1.O>[Cl:36][C:8]1[CH:9]=[C:10]([O:14][C:15]2[CH:20]=[CH:19][N:18]=[CH:17][C:16]=2[C:21]([N:23]2[C:32]3[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=3)[N:26]([CH:33]3[CH2:35][CH2:34]3)[CH2:25][CH2:24]2)=[O:22])[C:11]([Cl:13])=[CH:12][C:7]=1[C:6]([NH:5][CH2:4][C:3]([OH:38])=[O:2])=[O:37]

参加物

5

反応物 2

HCID 168937Lithium hydroxide, monohydrateHCID 53312194{2,5-Dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-acetic acid methyl ester

生成物 1

HCID 53312195{2,5-Dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-acetic acid収率 63%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 312751,4-Dioxane溶媒

実験手順

To a suspension of 0.148 g (0.27 mmol) {2,5-dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-acetic acid methyl ester (Example 29) in 1.5 mL dioxane and 1.5 mL water was added 0.014 g (0.33 mmol) lithium hydroxide monohydrate. After 2 hours stirring at room temperature the organic solvent was evaporated. The pH of the resulting yellow solution was adjusted to 1 with 1M aqueous hydrochloric acid and the solution was extracted three times with ethyl acetate. The combined organic layers were washed with brine, dried over magnesium sulfate, filtered and evaporated to give 0.091 g (63%) of the title compound as a yellow foam. MS (ESI): m/z=541.104 [M+H]+.

後処理

  1. customwas evaporated
  2. extractionthe solution was extracted three times with ethyl acetate
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. customevaporated

出典と根拠

ORDレコード
ord-8e1351b0506440faa98e4516de25f82f
出典データセット
uspto-grants-2013_04
特許番号
US08420647B2

反応ノート

読み込み中…