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

HRID 1967014

反応式

HRID 1967014 の反応式
C([O:3][C:4](=[O:40])[CH2:5][CH2:6][NH:7][C:8](=[O:39])[C:9]1[CH:14]=[C:13]([Cl:15])[C:12]([O:16][C:17]2[CH:22]=[CH:21][N:20]=[CH:19][C:18]=2[C:23]([N:25]2[C:34]3[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=3)[N:28]([CH:35]3[CH2:37][CH2:36]3)[CH2:27][CH2:26]2)=[O:24])=[CH:11][C:10]=1[Cl:38])C.O.O.[OH-].[Li+]>O1CCOCC1>[Cl:38][C:10]1[CH:11]=[C:12]([O:16][C:17]2[CH:22]=[CH:21][N:20]=[CH:19][C:18]=2[C:23]([N:25]2[C:34]3[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=3)[N:28]([CH:35]3[CH2:37][CH2:36]3)[CH2:27][CH2:26]2)=[O:24])[C:13]([Cl:15])=[CH:14][C:9]=1[C:8]([NH:7][CH2:6][CH2:5][C:4]([OH:40])=[O:3])=[O:39]

参加物

5

反応物 3

HCID 962WaterHCID 168937Lithium hydroxide, monohydrateHCID 533122803-{2,5-Dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-propionic acid ethyl ester

生成物 1

HCID 533122813-{2,5-Dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-propionic acid収率 86.3%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

実験手順

To a solution of 0.85 g (1.46 mmol) 3-{2,5-dichloro-4-[3-(4-cyclopropyl-3,4-dihydro-2H-quinoxaline-1-carbonyl)-pyridin-4-yloxy]-benzoylamino}-propionic acid ethyl ester (Example 33) in 7.5 mL dioxane were added 7.5 mL water and 0.076 g (1.81 mmol) lithium hydroxide monohydrate. The resulting suspension was stirred for 2.25 hours at room temperature and dioxane was removed by evaporation. The pH of the solution was adjusted to 2.5 by adding 1.9 mL 1M aqueous hydrochloric acid and the suspension was stirred for 2 hours at room temperature. The suspension was filtered, the filter cake washed with water and dried under high vacuum to give 0.70 g (86%) of the desired compound as an off-white solid. MS (ESI): m/z=555.12 [M+H]+.

後処理

  1. customdioxane was removed by evaporation
  2. additionby adding 1.9 mL 1M aqueous hydrochloric acid
  3. stirringthe suspension was stirred for 2 hours at room temperature
  4. filtrationThe suspension was filtered
  5. washthe filter cake washed with water
  6. customdried under high vacuum

出典と根拠

ORDレコード
ord-5e02d2565cc0495cbb52ed7e2a34636e
出典データセット
uspto-grants-2013_04
特許番号
US08420647B2

関連ノート

読み込み中…