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

HRID 1797178Notes

Reaction equation

HRID 1797178 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-].[K+].[K+].Cl>O1CCOCC1.O>[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 11430Potassium CarbonateHCID 3121834-Carboxyphenylboronic AcidHCID 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 36%

Reagents, catalysts & solvents 1

HCID 218864351,4-Dioxane--water (1/1)Solvent

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 (627 mg, 3.8 mmol), potassium carbonate (520 mg, 3.8 mmol), tetrakis(triphenyl phosphine)palladium(0) (206 mg, 0.2 mmol) and dioxane/water (112 mL, 3:1) were mixed together in a 250 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 1.43 g as a dark oil. 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 (355 mg, 36%) as a tan solid. Ion spray M.S. 378.3 (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 1.43 g as a dark oil
  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-ba75f2c75d4b4f86bec303cde7472977
Source dataset
uspto-grants-2006_04
Patent number
US07034045B1

Reaction notes

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