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Water → 5-(2,5-Dimethoxybenzylamino)-6-diphenylmethyl-1-azabicyclo-[2.2.2]octane-3-carboxamide

HRID 1458898
ノート
印刷プレビュー

反応式

HRID 1458898 の反応式
C[N:2](C)[C:3]([CH:5]1[CH:10]2[CH2:11][CH2:12][N:7]([CH:8]([CH:14]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)[C:9]2=O)[CH2:6]1)=[O:4].[CH3:28][O:29][C:30]1[CH:37]=[CH:36][C:35]([O:38][CH3:39])=[CH:34][C:31]=1[CH2:32][NH2:33].O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C1(C)C=CC=CC=1.C(O)(=O)C>[CH3:28][O:29][C:30]1[CH:37]=[CH:36][C:35]([O:38][CH3:39])=[CH:34][C:31]=1[CH2:32][NH:33][CH:9]1[CH:8]([CH:14]([C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=2)[C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[N:7]2[CH2:12][CH2:11][CH:10]1[CH:5]([C:3]([NH2:2])=[O:4])[CH2:6]2
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 962WaterHCID 186522,5-DimethoxybenzenemethanamineHCID 5049666Sodium triacetoxyborohydrideHCID 22097572N,N-Dimethyl-6-diphenylmethyl-5-oxo-1-azabicyclo[2.2.2]-octane-3-carboxamide

生成物 1

HCID 197015325-(2,5-Dimethoxybenzylamino)-6-diphenylmethyl-1-azabicyclo-[2.2.2]octane-3-carboxamide収率 19%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 1140Toluene溶媒

実験手順

A mixture of 48 (1.2 g, 3 mmol), 2,5-dimethoxybenzyl amine (0.6 g, 3.3 mmol) camphor sulfonic acid (45 mg) in toluene (15 ml) was heated at reflux with removal of water for 3 hours and then the solvent was removed. The residue was dissolved in small amount of THF (3 ml) and this solution was added to a solution of sodium triacetoxyborohydride (1.7 g, 8 mmol) in acetic acid (40 ml) at room temperature. The mixture was stirred at room temperature for 3 hours and the solvent was removed. Water was added and the mixture was neutralized with NaHCO3 and extracted with EtOAc three times. The combined extracts were dried over Na2SO4 and concentrated. Recrystallization from MeOH/acetone to give by-product. The mother liquor was concentrated and the residue was purified by recrystallization from MeOH/EtOAc to give 50 (0.27 g, 0.56 mmol, 19%)

後処理

  1. temperaturewas heated
  2. customthe solvent was removed
  3. dissolutionThe residue was dissolved in small amount of THF (3 ml)
  4. customthe solvent was removed
  5. additionWater was added
  6. extractionextracted with EtOAc three times
  7. dry with materialThe combined extracts were dried over Na2SO4
  8. concentrationconcentrated
  9. customRecrystallization from MeOH/acetone
  10. customto give by-product
  11. concentrationThe mother liquor was concentrated
  12. customthe residue was purified by recrystallization from MeOH/EtOAc

出典と根拠

ORDレコード
ord-562fa990bcdc4a8e8c98106cdd4c336c
出典データセット
uspto-grants-1998_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05852038

反応ノート

読み込み中…

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