Sodium Azide → tert-Butyl 6-(2-azidoethyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

HRID 1071067ノート

反応式

HRID 1071067 の反応式
CS(O[CH2:6][CH2:7][N:8]1[C:16]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[C:10]2[CH2:17][CH2:18][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:20][CH2:21][C:9]1=2)(=O)=O.[N-:29]=[N+:30]=[N-:31].[Na+]>CN(C=O)C.CCOC(C)=O>[N:29]([CH2:6][CH2:7][N:8]1[C:16]2[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=2[C:10]2[CH2:17][CH2:18][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:20][CH2:21][C:9]1=2)=[N+:30]=[N-:31]

参加物

5

反応物 2

HCID 33557Sodium AzideHCID 22396678tert-Butyl 6-{2-[(methylsulfonyl)oxy]ethyl}-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

生成物 1

HCID 22396936tert-Butyl 6-(2-azidoethyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate収率 94.3%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
60 °C

実験手順

tert-Butyl 6-{2-[(methylsulfonyl)oxy]ethyl}-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate (0.224 g, 0.549 mmol) and NaN3 (0.357 g, 5.49 mmol, 10.0 equiv.) were dissolved in DMF (2.5 mL) and the solution was stirred at 60° C. under N2 for 14.5 h. The reaction mixture was taken up in EtOAc and washed with water (2×15 mL). The aqueous layers were back extracted with EtOAc (25 mL). The combined organic layers were washed with brine (10 mL), dried over MgSO4, filtered and concentrated. The crude product (0.214 g) was chromatographed (SiO2 25 g, eluted with 3:1 hexane:EtOAc) to give tert-butyl 6-(2-azidoethyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate (0.184 g) in 94% yield. 1H NMR (300 MHz, CDCl3) δ 1.51, 2.99-3.10, 3.60, 3.66-3.84, 4.26, 7.14, 7.21, 7.27, 7.51; MS (ESI+) for C19H25N5O2 m/z 356.2 (M+H)+.

後処理

  1. washwashed with water (2×15 mL)
  2. extractionThe aqueous layers were back extracted with EtOAc (25 mL)
  3. washThe combined organic layers were washed with brine (10 mL)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude product (0.214 g) was chromatographed
  8. wash(SiO2 25 g, eluted with 3:1 hexane:EtOAc)

出典と根拠

ORDレコード
ord-9ebcb1e1f1a84ffba8dba75b177eef8c
出典データセット
uspto-grants-2005_06
特許番号
US06903090B2

反応ノート

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