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Hydrochloric Acid → 2-(2-(4'-(6-Carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)acetic acid

HRID 1930158
ノート
印刷プレビュー

反応式

HRID 1930158 の反応式
[OH-].[K+].[C:3]([C:6]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:23]=[CH:22][C:21]([CH2:24][C:25]([NH:27][CH2:28][C:29]([O:31]C)=[O:30])=[O:26])=[CH:20][C:19]=3[Cl:33])=[CH:14][CH:13]=2)[C:9]([CH3:34])=[N:8][C:7]=1[CH3:35])(=[O:5])[NH2:4].Cl>C(O)(C)(C)C>[C:3]([C:6]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:23]=[CH:22][C:21]([CH2:24][C:25]([NH:27][CH2:28][C:29]([OH:31])=[O:30])=[O:26])=[CH:20][C:19]=3[Cl:33])=[CH:14][CH:13]=2)[C:9]([CH3:34])=[N:8][C:7]=1[CH3:35])(=[O:5])[NH2:4]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 67285289Methyl 2-(2-(4'-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)acetate2 回

生成物 1

HCID 672857212-(2-(4'-(6-Carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)acetic acid収率 19.92%

試薬・触媒・溶媒 1

HCID 6386
tert-Butanol
溶媒

反応条件

温度
45 °C

実験手順

Powdered potassium hydroxide (106 mg, 1.89 mmol) was added in one portion to methyl 2-(2-(4′-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)acetate (Intermediate 20-1; 294 mg, 0.63 mmol) in tert-butanol (4062 μL) at 45° C. The resulting solution was stirred at 45° C. for 150 minutes, a thick white suspension slowly precipitate formed. 2M HCl (5 mL) was added and the mixture was evaporated to remove the organic solvent. The reaction mixture was diluted with EtOAc and water, the organic layer was collected, dried with MgSO4 and evaporated to afford crude product. This was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 50 mm diameter, 150 mm length), using decreasingly polar mixtures of water (containing 0.1% formic acid) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford 2-(2-(4′-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)acetic acid (56.8 mg, 19.92%) as a white solid.

後処理

  1. customa thick white suspension slowly precipitate
  2. customformed
  3. customthe mixture was evaporated
  4. customto remove the organic solvent
  5. additionThe reaction mixture was diluted with EtOAc and water
  6. customthe organic layer was collected
  7. dry with materialdried with MgSO4
  8. customevaporated
  9. customto afford crude product
  10. customThis was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 50 mm diameter, 150 mm length)
  11. additionFractions containing the desired compound
  12. customwere evaporated to dryness

出典と根拠

ORDレコード
ord-f5d0c32caff2459ebbad17fbc42b80fe
出典データセット
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08188092B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート