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Hydrochloric Acid → 2-(3,9-dimethyl-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl)-1-(piperazin-1-yl)ethanone

HRID 1045623
ノート
印刷プレビュー

反応式

HRID 1045623 の反応式
[H-].[Na+].[CH3:3][N:4]1[CH2:17][CH2:16][C:15]2[C:14]3[CH:13]=[C:12]([CH3:18])[CH:11]=[CH:10][C:9]=3[NH:8][C:7]=2[CH2:6][CH2:5]1.Cl[CH2:20][C:21]([N:23]1[CH2:28][CH2:27][N:26](C(OC(C)(C)C)=O)[CH2:25][CH2:24]1)=[O:22].Cl>C1COCC1>[CH3:3][N:4]1[CH2:17][CH2:16][C:15]2[C:14]3[CH:13]=[C:12]([CH3:18])[CH:11]=[CH:10][C:9]=3[N:8]([CH2:20][C:21]([N:23]3[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]3)=[O:22])[C:7]=2[CH2:6][CH2:5]1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 313Hydrochloric Acid2 回HCID 24758Sodium hydrideHCID 15829156Tert-butyl 4-(2-chloroacetyl)piperazine-1-carboxylateHCID 685600921,2,3,4,5,6-Hexahydro-3,9-dimethylazepino[4,5-b]indole

生成物 1

HCID 593683982-(3,9-dimethyl-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl)-1-(piperazin-1-yl)ethanone

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

実験手順

To a solution of sodium hydride (46 mg, 1.16 mmol) in THF (5 ml), 3,9-dimethyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole (0.1 g, 0.46 mmol) was added at 0° C. and stirred at RT for 30 min. tert-Butyl 4-(2-chloroacetyl)piperazine-1-carboxylate (147 mg, 0.55 mmol) was added slowly dropwise at RT and stirred for 2 h at RT. After completion of the reaction (monitored by TLC & LCMS), the reaction was quenched with ice water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure. Crude product was purified by column chromatography to afford free base, which was converted to HCl salt using ethanolic HCl (38 mg). The NMR confirmed removal of the Boc group when ethanolic HCl was used. 1H NMR (CD3OD, DiHCl salt) δ (ppm): 7.3 (s, 1H), 7.22 (d, 1H), 7.0 (d, 1H), 5.23 (d, 2H), 3.95-4.10 (m, 4H), 3.7-3.9 (m, 4H), 3.36-3.43 (m, 4H), 3.1-3.22 (m, 4H), 3.0 (s, 3H), 2.4 (s, 3H).

後処理

  1. additionwas added slowly dropwise at RT
  2. customAfter completion of the reaction (monitored by TLC & LCMS)
  3. customthe reaction was quenched with ice water
  4. extractionextracted with ethyl acetate
  5. washThe organic layer was washed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. customevaporated under reduced pressure
  8. customCrude product was purified by column chromatography
  9. customto afford free base, which
  10. customremoval of the Boc group when ethanolic HCl

出典と根拠

ORDレコード
ord-f1681ae65266417f97c1e64d6ef3c156
出典データセット
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08569287B2

反応ノート

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