Hydrogen Bromide → HCID 131732301、化合物

HRID 1424854ノート

反応式

HRID 1424854 の反応式
N[C:2]1[CH:11]=[CH:10][C:9]([N:12]([C:17]2[C:36]([CH:37]3[CH2:39][CH2:38]3)=[CH:35][C:20]3[C:21]([C:31](=[O:34])[NH:32][CH3:33])=[C:22]([C:24]4[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=4)[O:23][C:19]=3[CH:18]=2)[S:13]([CH3:16])(=[O:15])=[O:14])=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].[BrH:40].N([O-])=O.[Na+]>C(#N)C.[Cu]Br>[Br:40][C:2]1[CH:11]=[CH:10][C:9]([N:12]([C:17]2[C:36]([CH:37]3[CH2:39][CH2:38]3)=[CH:35][C:20]3[C:21]([C:31](=[O:34])[NH:32][CH3:33])=[C:22]([C:24]4[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=4)[O:23][C:19]=3[CH:18]=2)[S:13]([CH3:16])(=[O:15])=[O:14])=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5]

参加物

6

反応物 3

HCID 260Hydrogen BromideHCID 23668193Sodium NitriteHCID 122643079HCID 122643079、化合物

生成物 1

HCID 131732301HCID 131732301、化合物収率 55.4%

試薬・触媒・溶媒 2

HCID 24593copper(I) bromide触媒HCID 6342Acetonitrile溶媒

実験手順

A suspension of methyl 2-amino-5-(N-(5-cyclopropyl-2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-6-yl)methylsulfonamido)benzoate (1.6 g, 2.70 mmol) in acetonitrile (30 mL) and hydrogen bromide (25 mL, 2.70 mmol) was treated with aqueous sodium nitrite (0.205 g, 2.97 mmol) at 0° C. and the mixture was stirred for 30 min, copper(I) bromide (0.464 g, 3.24 mmol) was added in portions at the same temperature. It was allowed to warm up to room temperature and then heated to 55° C. overnight. The mixture was cooled down to room temperature and partitioned between EtOAc and water. The organic phase was washed with brine, dried over Na2SO4. Concentrated under reduced pressure, the residue was purified by flashing chromatography on silica gel eluted with 0-50% EtOAc in hexane to give the product (0.92 g, 55%) as a white foam. 1H NMR (400 MHz, DMSO-d6) δ ppm 8.49 (q, J=4.23 Hz, 1H) 8.14 (s, 1H) 7.97 (dd, J=8.78, 5.46 Hz, 2H) 7.80 (d, J=2.93 Hz, 1H) 7.75 (d, J=8.78 Hz, 1H) 7.50 (dd, J=8.88, 2.83 Hz, 1H) 7.41 (t, J=8.88 Hz, 2H) 7.22 (s, 1H) 3.84 (s, 3H) 3.44 (s, 3H) 2.84 (d, J=4.68 Hz, 3H) 2.05-2.15 (m, 1H) 0.92-1.05 (br. s, 1H) 0.87 (br. s., 2H) 0.40 (br. s., 1H). LCMS (m/z, ES+)=617 (M+H+).

後処理

  1. temperatureheated to 55° C. overnight
  2. temperatureThe mixture was cooled down to room temperature
  3. custompartitioned between EtOAc and water
  4. washThe organic phase was washed with brine
  5. dry with materialdried over Na2SO4
  6. concentrationConcentrated under reduced pressure
  7. customthe residue was purified
  8. washeluted with 0-50% EtOAc in hexane

出典と根拠

ORDレコード
ord-4e48228177e04cb98210314331718e16
出典データセット
uspto-grants-2015_01
特許番号
US08927593B2

反応ノート

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