Sodium hydride → (1-{2-[5-(4-bromo-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl)-2-methyl-propyl)-carbamic acid methyl ester

HRID 79735

反応式

HRID 79735 の反応式
[CH3:1][O:2][C:3](=[O:28])[NH:4][CH:5]([C:9]([N:11]1[CH2:15][CH2:14][CH2:13][CH:12]1[C:16]1[NH:17][C:18]([C:21]2[CH:26]=[CH:25][C:24]([Br:27])=[CH:23][CH:22]=2)=[CH:19][N:20]=1)=[O:10])[CH:6]([CH3:8])[CH3:7].[H-].[Na+].[CH3:31][Si:32]([CH2:35][CH2:36][O:37][CH2:38]Cl)([CH3:34])[CH3:33]>CN(C=O)C.[NH4+].[Cl-].CCOC(C)=O>[CH3:1][O:2][C:3](=[O:28])[NH:4][CH:5]([C:9]([N:11]1[CH2:15][CH2:14][CH2:13][CH:12]1[C:16]1[N:17]([CH2:38][O:37][CH2:36][CH2:35][Si:32]([CH3:34])([CH3:33])[CH3:31])[C:18]([C:21]2[CH:22]=[CH:23][C:24]([Br:27])=[CH:25][CH:26]=2)=[CH:19][N:20]=1)=[O:10])[CH:6]([CH3:8])[CH3:7]

参加物

7

反応物 3

HCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 66620141Methyl (1-(2-(4-(4-bromophenyl)-1H-imidazol-2-YL)pyrrolidin-1-YL)-3-methyl-1-oxobutan-2-YL)carbamate

生成物 1

HCID 66620156(1-{2-[5-(4-bromo-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl)-2-methyl-propyl)-carbamic acid methyl ester収率 71.4%

試薬・触媒・溶媒 3

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒HCID 25517Ammonium Chloride溶媒

実験手順

(1-{2-[5-(4-Bromo-phenyl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (2.6 g, 5.8 mmol) in DMF (60 mL) was treated with NaH (60% dispersion in mineral oil, 256 mg, 6.4 mmol) in one portion. After 5 min, the mixture was treated with SEMCl (1.08 mL, 6.1 mmol) in 0.1 mL portions over 10 min. The reaction was stirred for 2 hours and diluted with saturated NH4Cl solution (50 mL) and EtOAc (100 mL). The organic layer was washed with H2O (3 50 mL) and brine (50 mL). The solution was dried over MgSO4 and subjected to a 120 g SiO2 COMBIFLASH column (0-100% EtOAc-hexanes gradient) to afford (1-{2-[5-(4-bromo-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (2.4 g, 71%).

後処理

  1. washThe organic layer was washed with H2O (3 50 mL) and brine (50 mL)
  2. dry with materialThe solution was dried over MgSO4

出典と根拠

ORDレコード
ord-35694f47489f474a81447ed8d97d8635
出典データセット
uspto-grants-2014_09
特許番号
US08841278B2

関連ノート

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