Dimethylformamide → tert-Butyl [(1S)-2-[3-bromo-4-(2-tert-butyl-1,1-dioxido-3-oxo-2,3-dihydroisothiazol-5-yl)phenyl]-1-(5-phenyl-1-[2-(trimethylsilyl)ethoxy]methyl-1H-imidazol-2-yl)ethyl]carbamate

HRID 724726ノート

反応式

HRID 724726 の反応式
[Br:1][C:2]1[CH:3]=[C:4]([CH2:9][C@H:10]([NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])[C:11]2[N:12]([CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:28])[CH3:27])[C:13]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[CH:14][N:15]=2)[CH:5]=[CH:6][C:7]=1I.[C:38]([N:42]1[C:46](=[O:47])[CH:45]=[CH:44][S:43]1(=[O:49])=[O:48])([CH3:41])([CH3:40])[CH3:39].C(N(CC)CC)C.CN(C)C=O>CCCC[N+](CCCC)(CCCC)CCCC.[Cl-].O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[Br:1][C:2]1[CH:3]=[C:4]([CH2:9][C@H:10]([NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])[C:11]2[N:12]([CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:28])[CH3:27])[C:13]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[CH:14][N:15]=2)[CH:5]=[CH:6][C:7]=1[C:44]1[S:43](=[O:48])(=[O:49])[N:42]([C:38]([CH3:40])([CH3:39])[CH3:41])[C:46](=[O:47])[CH:45]=1

参加物

8

反応物 4

HCID 6228DimethylformamideHCID 8471TriethylamineHCID 111168162-Tert-butyl-2,3-dihydro-1lambda6,2-thiazole-1,1,3-trioneHCID 58746876tert-Butyl [(1S)-2-(3-bromo-4-iodophenyl)-1-(5-phenyl-1-[2-(trimethylsilyl)ethoxy]methyl-1H-imidazol-2-yl)ethyl]carbamate

生成物 1

HCID 58746634tert-Butyl [(1S)-2-[3-bromo-4-(2-tert-butyl-1,1-dioxido-3-oxo-2,3-dihydroisothiazol-5-yl)phenyl]-1-(5-phenyl-1-[2-(trimethylsilyl)ethoxy]methyl-1H-imidazol-2-yl)ethyl]carbamate収率 24%

試薬・触媒・溶媒 3

HCID 70681Tetrabutylammonium Chloride触媒HCID 167845palladium(II) acetate触媒HCID 962Water溶媒

反応条件

温度
70 °C

実験手順

A solution of tert-butyl [(1S)-2-(3-bromo-4-iodophenyl)-1-(5-phenyl-1-[2-(trimethylsilyl)ethoxy]methyl-1H-imidazol-2-yl)ethyl]carbamate (130 mg, 112 μmol), 2-tert-butylisothiazol-3(2H)-one 1,1-dioxide (42.3 mg, 223 μmol), triethylamine (46.7 mL, 335 μmol), palladium acetate (25.1 mg, 112 μmol), N,N-dimethylformamide (3.0 mL) and tetra-N-butylammonium chloride (31.0 mg, 112 μmol) was degassed and stirred at 70° C. for 2 h. The reaction was diluted with water and extracted with ethyl acetate three times, dried with sodium sulfate, filtered, and concentrated in vacuo. The crude residue was purified by flash column chromatography to yield the desired product (20.0 mg, 24%). MF=C35H47BrN4O6SSi; LCMS found for C35H48BrN4O6SSi (M+H)+: m/z=759.

後処理

  1. extractionextracted with ethyl acetate three times
  2. dry with materialdried with sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe crude residue was purified by flash column chromatography

出典と根拠

ORDレコード
ord-99929a71af1c46a59075e03f2864b502
出典データセット
uspto-grants-2006_11
特許番号
US07141596B2

反応ノート

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