Hydrochloric Acid → HCID 131732291, compound

HRID 1424832Notes

Reaction equation

HRID 1424832 reaction equation
[OH-].[Na+].[Br:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]([C:15]2[C:35]([CH:36]3[CH2:38][CH2:37]3)=[CH:34][C:18]3[C:19]([C:29]([O:31]CC)=[O:30])=[C:20]([C:22]4[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=4)[O:21][C:17]=3[CH:16]=2)[S:11]([CH3:14])(=[O:13])=[O:12])=[CH:6][C:5]=1[Cl:39].CCOC(C)=O.Cl>C1COCC1.CO>[Br:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]([C:15]2[C:35]([CH:36]3[CH2:37][CH2:38]3)=[CH:34][C:18]3[C:19]([C:29]([OH:31])=[O:30])=[C:20]([C:22]4[CH:23]=[CH:24][C:25]([Cl:28])=[CH:26][CH:27]=4)[O:21][C:17]=3[CH:16]=2)[S:11]([CH3:14])(=[O:12])=[O:13])=[CH:6][C:5]=1[Cl:39]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 14798Sodium Hydroxide2×HCID 131732290HCID 131732290, compound

Product 1

HCID 131732291HCID 131732291, compoundYield 94%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
60 °C

Procedure

A 1M solution of NaOH (1.877 mL, 1.877 mmol) was added to a solution of ethyl 6-(N-(4-bromo-3-chlorophenyl)methylsulfonamido)-2-(4-chlorophenyl)-5-cyclopropylbenzofuran-3-carboxylate (234 mg, 0.375 mmol) in THF (2 mL) and MeOH (1 mL) at RT. After 1 h a white precipitate formed but starting material is still evident by LCMS. THF (3 mL) and a 4N solution of NaOH (1 mL) were added and the mixture was heated to 60° C. for 4 h. EtOAc was added and the aqueous layer was made acidic with the addition of 1N HCl. The organic layer was separated, washed with water, brine, dried over Na2SO4, filtered and concentrated to give 6-(N-(4-bromo-3-chlorophenyl)methylsulfonamido)-2-(4-chlorophenyl)-5-cyclopropylbenzofuran-3-carboxylic acid (220 mg, 0.351 mmol, 94% yield) as a white solid. LCMS (m/z, ES+)=594.0 (M−H).

Workup

  1. customAfter 1 h a white precipitate formed
  2. customThe organic layer was separated
  3. washwashed with water, brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-e88266cbb1bf408797972b79e37f9b75
Source dataset
uspto-grants-2015_01
Patent number
US08927593B2

Reaction notes

Loading…