Hydrochloric Acid → 4-[4-(1-fluoro-1-methyl-2-{[(methylethyl)sulfonyl]amino}ethyl)phenyl]benzoic Acid

HRID 1797179Notes

Reaction equation

HRID 1797179 reaction equation
[F:1][C:2]([C:12]1[CH:17]=[CH:16][C:15](I)=[CH:14][CH:13]=1)([CH3:11])[CH2:3][NH:4][S:5]([CH:8]([CH3:10])[CH3:9])(=[O:7])=[O:6].[C:19]([C:22]1[CH:27]=[CH:26][C:25](B(O)O)=[CH:24][CH:23]=1)([OH:21])=[O:20].C([O-])([O-])=O.[Na+].[Na+].O.Cl>O1CCOCC1>[F:1][C:2]([C:12]1[CH:17]=[CH:16][C:15]([C:25]2[CH:26]=[CH:27][C:22]([C:19]([OH:21])=[O:20])=[CH:23][CH:24]=2)=[CH:14][CH:13]=1)([CH3:11])[CH2:3][NH:4][S:5]([CH:8]([CH3:10])[CH3:9])(=[O:7])=[O:6]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 3121834-Carboxyphenylboronic AcidHCID 2735133Sodium Carbonate MonohydrateHCID 9800265[2-Fluoro-2-(4-iodophenyl)propyl][(methylethyl)sulfonyl]amine

Product 1

HCID 221765834-[4-(1-fluoro-1-methyl-2-{[(methylethyl)sulfonyl]amino}ethyl)phenyl]benzoic AcidYield 51%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

(−)-[2-Fluoro-2-(4-iodophenyl)propyl][(methylethyl)sulfonyl]amine (1.00 g, 2.6 mmol, prepared in example 1a), 4-carboxybenzene boronic acid (485 mg, 2.9 mmol), Na2CO3/H2O (4.4 mL, excess), tetrakis(triphenyl phosphine)palladium(0) (206 mg, 0.2 mmol) and dioxane (20 mL) were mixed together in a 50 mL single neck flask and stirred at 80° C. for 4 hours. The reaction was cooled to room temperature and poured into 1N HCl and the desired product was extracted with ethyl acetate. The organic layer was dried over MgSO4, filtered, and concentrated under reduced pressure to yield 871 mg as a foam. This material was purified via silica gel chromatography employing the chromatotron and using a 4000 micron rotor while eluting with a solvent of methylene chloride/methanol 9:1 to yield the title compound (500 mg, 51%) as a tan solid. Ion spray M.S. 378.1 (M*−1).

Workup

  1. temperatureThe reaction was cooled to room temperature
  2. extractionthe desired product was extracted with ethyl acetate
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto yield 871 mg as a foam
  7. customThis material was purified via silica gel chromatography
  8. washwhile eluting with a solvent of methylene chloride/methanol 9:1

Sources & evidence

ORD record
ord-d50daed6ffc34a3cb925cce5b2d833f7
Source dataset
uspto-grants-2006_04
Patent number
US07034045B1

Reaction notes

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