Sodium hydride → tert-butyl (6R,7R)-6-[(3-cyano-2-oxopyridin-1(2H)-yl)methyl]-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate

HRID 1022604ノート

反応式

HRID 1022604 の反応式
[H-].[Na+].[C:3]([C:5]1[C:6]([OH:11])=[N:7][CH:8]=[CH:9][CH:10]=1)#[N:4].[Br-].[Li+].[Cl:14][C:15]1[CH:16]=[C:17]([C@@H:22]2[O:28][CH2:27][CH2:26][N:25]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:24][C@H:23]2[CH2:36]OS(C)(=O)=O)[CH:18]=[CH:19][C:20]=1[Cl:21]>COCCOC.O.CN(C=O)C>[C:3]([C:5]1[C:6](=[O:11])[N:7]([CH2:36][C@H:23]2[C@H:22]([C:17]3[CH:18]=[CH:19][C:20]([Cl:21])=[C:15]([Cl:14])[CH:16]=3)[O:28][CH2:27][CH2:26][N:25]([C:29]([O:31][C:32]([CH3:33])([CH3:35])[CH3:34])=[O:30])[CH2:24]2)[CH:8]=[CH:9][CH:10]=1)#[N:4]

参加物

8

反応物 4

HCID 24758Sodium hydrideHCID 82050Lithium BromideHCID 86663851tert-butyl (6S,7R)-7-(3,4-dichlorophenyl)-6-{[(methylsulfonyl)oxy]methyl}-1,4-oxazepane-4-carboxylateHCID 178510022HCID 178510022、化合物

生成物 1

HCID 66975537tert-butyl (6R,7R)-6-[(3-cyano-2-oxopyridin-1(2H)-yl)methyl]-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate収率 86.2%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 80711,2-Dimethoxyethane溶媒2 回

実験手順

60% Sodium hydride (0.086 g) was added to a mixed solution of 3-cyano-2-hydroxypyridine (0.206 g) in 1,2-dimethoxyethane (4 ml)-DMF (2 ml) under ice-cooling, and the mixture was stirred for 5 min. To the reaction solution was added lithium bromide (0.248 g), and the mixture was stirred at room temperature for 0.5 hr. To the reaction solution was added a solution of tert-butyl (6S,7R)-7-(3,4-dichlorophenyl)-6-{[(methylsulfonyl)oxy]methyl}-1,4-oxazepane-4-carboxylate (0.65 g) in 1,2-dimethoxyethane (4 mL), and the mixture was stirred at 60° C. overnight. To the reaction mixture was added water, and the mixture was extracted with ethyl acetate. The extract was washed with brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (0.59 g, 86%).

後処理

  1. temperaturecooling
  2. stirringthe mixture was stirred at room temperature for 0.5 hr
  3. stirringthe mixture was stirred at 60° C. overnight
  4. extractionthe mixture was extracted with ethyl acetate
  5. washThe extract was washed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. customThe solvent was evaporated under reduced pressure
  8. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-9562f151821a41189674e76f724f7a05
出典データセット
uspto-grants-2014_05
特許番号
US08722662B2

反応ノート

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