Ethyl bromoacetate → 5-Chloro-N-(5-chloropyridin-2-yl)-2-[(1-ethoxycarbonylmethylpiperidin-4-yl)methylamino]benzamide

HRID 1883023ノート

反応式

HRID 1883023 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:18][CH2:19][CH:20]2[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]2)=[C:6]([CH:17]=1)[C:7]([NH:9][C:10]1[CH:15]=[CH:14][C:13]([Cl:16])=[CH:12][N:11]=1)=[O:8].Br[CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29].C(N(CC)CC)C>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:18][CH2:19][CH:20]2[CH2:21][CH2:22][N:23]([CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH2:24][CH2:25]2)=[C:6]([CH:17]=1)[C:7]([NH:9][C:10]1[CH:15]=[CH:14][C:13]([Cl:16])=[CH:12][N:11]=1)=[O:8]

参加物

5

反応物 3

HCID 7748Ethyl bromoacetateHCID 8471TriethylamineHCID 98861065-chloro-N-(5-chloropyridin-2-yl)-2-[(4-piperidinylmethyl)amino]benzamide

生成物 1

HCID 219062585-Chloro-N-(5-chloropyridin-2-yl)-2-[(1-ethoxycarbonylmethylpiperidin-4-yl)methylamino]benzamide収率 51%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
70 °C

実験手順

A solution of 5-chloro-N-(5-chloropyridin-2-yl)-2-[(4-piperidinylmethyl)amino]benzamide from Example 60 (0.5 g, 1.32 mmol) in 30 mL of dimethylformamide was treated with excess ethyl bromoacetate (0.7 mL, 6.60 mmol). After heating at 70° C. for 1 h, triethylamine (0.9 ml, 6.6 mmol) was added dropwise; the reaction mixture was then heated at 70° C. for an additional 30 min, after which it was partitioned between saturated sodium bicarbonate and dichloromethane. The organic extract was concentrated in vacuo, and the residue was applied to a 10 g SCX column which was washed with methanol and eluted with 1 N ammonia in methanol. The yellow fractions were combined and concentrated in vacuo to afford an orange oil, which was subjected to silica gel chromatography. Elution with 9:1 dichloromethane-methanol, then 9:3 dichloromethane-methanol provided 0.31 g (51%) of the title compound as a yellow solid.

後処理

  1. temperaturethe reaction mixture was then heated at 70° C. for an additional 30 min
  2. customafter which it was partitioned between saturated sodium bicarbonate and dichloromethane
  3. extractionThe organic extract
  4. concentrationwas concentrated in vacuo
  5. washwas washed with methanol
  6. washeluted with 1 N ammonia in methanol
  7. concentrationconcentrated in vacuo
  8. customto afford an orange oil, which
  9. washElution with 9:1 dichloromethane-methanol

出典と根拠

ORDレコード
ord-91f88b36ac204cf8bc5a775cd0ece632
出典データセット
uspto-grants-2004_07
特許番号
US06759414B2

反応ノート

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