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Cesium carbonate → HCID 59279885、化合物

HRID 2045707
ノート
印刷プレビュー

反応式

HRID 2045707 の反応式
C([O-])([O-])=O.[Cs+].[Cs+].BrC1C=CC(S([O:17][C@@H:18]2[CH2:22][N:21]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[C@H:20]([C:30]([O:32][CH3:33])=[O:31])[CH2:19]2)(=O)=O)=CC=1.[Br:34][C:35]1[CH:36]=[C:37]2[C:42](=[CH:43][C:44]=1[O:45][CH3:46])[NH:41][C:40](=[O:47])[CH:39]=[C:38]2O>CN1C(=O)CCC1>[Br:34][C:35]1[CH:36]=[C:37]2[C:42](=[CH:43][C:44]=1[O:45][CH3:46])[NH:41][C:40](=[O:47])[CH:39]=[C:38]2[O:17][C@H:18]1[CH2:22][N:21]([C:23]([O:25][C:26]([CH3:27])([CH3:28])[CH3:29])=[O:24])[C@H:20]([C:30]([O:32][CH3:33])=[O:31])[CH2:19]1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 565904841-(tert-Butyl) 2-methyl (2S,4S)-4-(((4-bromophenyl)sulfonyl)oxy)pyrrolidine-1,2-dicarboxylateHCID 592798516-Bromo-4-hydroxy-7-methoxyquinolin-2(1H)-one

生成物 1

HCID 59279885HCID 59279885、化合物収率 53%

試薬・触媒・溶媒 1

HCID 13387N-methyl-2-pyrrolidone溶媒

反応条件

温度
60 °C

実験手順

Cs2CO3 (8.42 g, 25.8 mmol) was added to a solution of 1-tert-butyl 2-methyl (2S,4S)-4-{[(4-bromophenyl)sulfonyl]oxy}pyrrolidine-1,2-dicarboxylate (4 g, 8.61 mmol) and the product from step 1 (3.49 g, 12.92 mmol) in NMP (86 ml) under nitrogen. The mixture was then heated to 60° C. After 6.5 h, the reaction was extracted with water and EtOAc. The organic layer was extracted with water and brine and dried over MgSO4. The solvent was then removed in vacuo. The crude product (6.5 g) was purified on silica (gradient elution, 0-100% EtOAc/hexanes, and then 0-5% MeOH/DCM) to yield 2.26 g (53%) of the title compound. LRMS ESI+ ((M-Boc)+H)+ 397.3/399.3.

後処理

  1. extractionthe reaction was extracted with water and EtOAc
  2. extractionThe organic layer was extracted with water and brine
  3. dry with materialdried over MgSO4
  4. customThe solvent was then removed in vacuo
  5. customThe crude product (6.5 g) was purified on silica (
  6. washgradient elution, 0-100% EtOAc/hexanes

出典と根拠

ORDレコード
ord-bef46001d7c84355aa519de1f1fe297d
出典データセット
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08591878B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート