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Sodium Carbonate → 1,1-Dioxo-3-butyl-3-ethyl-5-phenyl-7-bromo-8-(1-ethoxycarbonylethoxy)-2,3,4,5-tetrahydro-1,5-benzothiazepine

HRID 458906
ノート
印刷プレビュー

反応式

HRID 458906 の反応式
C(=O)([O-])[O-].[Na+].[Na+].[CH2:7]([O:9][C:10](=[O:14])[CH:11](Br)[CH3:12])[CH3:8].[O:15]=[S:16]1(=[O:41])[C:22]2[CH:23]=[C:24]([OH:28])[C:25]([Br:27])=[CH:26][C:21]=2[N:20]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[CH2:19][C:18]([CH2:37][CH2:38][CH2:39][CH3:40])([CH2:35][CH3:36])[CH2:17]1>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.CC#N>[O:41]=[S:16]1(=[O:15])[C:22]2[CH:23]=[C:24]([O:28][CH:11]([C:10]([O:9][CH2:7][CH3:8])=[O:14])[CH3:12])[C:25]([Br:27])=[CH:26][C:21]=2[N:20]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[CH2:19][C:18]([CH2:37][CH2:38][CH2:39][CH3:40])([CH2:35][CH3:36])[CH2:17]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 3

HCID 10340Sodium CarbonateHCID 79040Ethyl 2-bromopropionateHCID 98250801,1-Dioxo-3-butyl-3-ethyl-5-phenyl-7-bromo-8-hydroxy-2,3,4,5-tetrahydro-1,5-benzothiazepine

生成物 1

HCID 223931141,1-Dioxo-3-butyl-3-ethyl-5-phenyl-7-bromo-8-(1-ethoxycarbonylethoxy)-2,3,4,5-tetrahydro-1,5-benzothiazepine収率 95%

試薬・触媒・溶媒 2

HCID 74236
Tetrabutylammonium Bromide
触媒
HCID 6342Acetonitrile溶媒

実験手順

Sodium carbonate (0.30 g, 2.83 mmol), 2-bromopropanoic acid ethyl ester (0.145 g, 0.796 mmol) and tetrabutylammonium bromide (0.022 g, 0.07 mmol) was added to a solution of 1,1-dioxo-3-butyl-3-ethyl-5-phenyl-7-bromo-8-hydroxy-2,3,4,5-tetrahydro-1,5-benzothiazepine (WO 96/16051; 0.300 g, 0.663 mmol) in MeCN (10 ml). The suspension was heated under reflux overnight. The solvent was evaporated and the crude mixture was extracted (DCM/H2O), dried. (MgSO4), evaporated and purified by flash chromatography (Hex:EtOAc-5:1) to give the title compound 0.346 g (95%) as a white solid. NMR 0.70–0.85 (m, 6H), 1.00–1.75 (m, 8H), 1.35 (t, 3H), 1.70 (d, 3H), 3.05–3.25 (m, 2H), 3.55–3.90 (m, 2H), 4.20–4.35 (m, 2H), 4.80 (q, 1H), 7.00–7.10 (m, 3H), 7.15 (s, 1H), 7.25–7.35 (m, 2H), 7.45 (s, 1H).

後処理

  1. temperatureThe suspension was heated
  2. temperatureunder reflux overnight
  3. customThe solvent was evaporated
  4. extractionthe crude mixture was extracted (DCM/H2O)
  5. customdried
  6. custom(MgSO4), evaporated
  7. custompurified by flash chromatography (Hex:EtOAc-5:1)

出典と根拠

ORDレコード
ord-2f8d0839e8044f61b8f36d00c63bee07
出典データセット
uspto-grants-2007_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07192945B2

反応ノート

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