5-cyclopropyl-6-(N-(3-fluoro-4-nitrophenyl)methylsulfonamido)-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide → 6-(N-(4-amino-3-fluorophenyl)methylsulfonamido)-5-cyclopropyl-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide

HRID 2272301Notes

Reaction equation

HRID 2272301 reaction equation
[CH:1]1([C:4]2[C:5]([N:24]([C:29]3[CH:34]=[CH:33][C:32]([N+:35]([O-])=O)=[C:31]([F:38])[CH:30]=3)[S:25]([CH3:28])(=[O:27])=[O:26])=[CH:6][C:7]3[O:11][C:10]([C:12]4[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=4)=[C:9]([C:19]([NH:21][CH3:22])=[O:20])[C:8]=3[CH:23]=2)[CH2:3][CH2:2]1>C(OCC)(=O)C.C(O)C>[NH2:35][C:32]1[CH:33]=[CH:34][C:29]([N:24]([C:5]2[C:4]([CH:1]3[CH2:3][CH2:2]3)=[CH:23][C:8]3[C:9]([C:19]([NH:21][CH3:22])=[O:20])=[C:10]([C:12]4[CH:13]=[CH:14][C:15]([F:18])=[CH:16][CH:17]=4)[O:11][C:7]=3[CH:6]=2)[S:25]([CH3:28])(=[O:27])=[O:26])=[CH:30][C:31]=1[F:38]

Participants

4

Reactant 1

HCID 1317322645-cyclopropyl-6-(N-(3-fluoro-4-nitrophenyl)methylsulfonamido)-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide

Product 1

HCID 1317322656-(N-(4-amino-3-fluorophenyl)methylsulfonamido)-5-cyclopropyl-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamideYield 90.7%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 5-cyclopropyl-6-(N-(3-fluoro-4-nitrophenyl)methylsulfonamido)-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide (230 mg, 0.43 mmol) and stannous chloride (291 mg, 1.29 mmol) in ethyl acetate (5 mL) and ethanol (5 mL) was maintained at reflux for 3 hours. The mixture was cooled to room temperature and partitioned between ethyl acetate and water. The organic layer was dried over sodium sulfate, filtered, concentrated to dryness, and purified by column chromatography to afford 6-(N-(4-amino-3-fluorophenyl)methylsulfonamido)-5-cyclopropyl-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide (200 mg, 0.39 mmol, 90% yield) as a yellow powder. LCMS (m/z, ES+)=512 (M+H+)

Workup

  1. temperaturewas maintained
  2. temperatureat reflux for 3 hours
  3. custompartitioned between ethyl acetate and water
  4. dry with materialThe organic layer was dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated to dryness
  7. custompurified by column chromatography

Sources & evidence

ORD record
ord-bbe01c225b6f47e9af0f1294b22d52ba
Source dataset
uspto-grants-2015_09
Patent number
US09119868B2

Reaction notes

Loading…