Fumaric Acid → 1-{4-Fluoro-5-(2-fluoropyridin-3-yl)-1-[(4-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine fumarate

HRID 880869Notes

Reaction equation

HRID 880869 reaction equation
[F:1][C:2]1[C:3]([CH2:24][NH:25][CH3:26])=[CH:4][N:5]([S:14]([C:17]2[CH:18]=[N:19][CH:20]=[CH:21][C:22]=2[CH3:23])(=[O:16])=[O:15])[C:6]=1[C:7]1[C:8]([F:13])=[N:9][CH:10]=[CH:11][CH:12]=1.[C:27]([OH:34])(=[O:33])/[CH:28]=[CH:29]/[C:30]([OH:32])=[O:31]>C(OCC)(=O)C.C(O)C>[C:27]([OH:34])(=[O:33])/[CH:28]=[CH:29]/[C:30]([OH:32])=[O:31].[F:1][C:2]1[C:3]([CH2:24][NH:25][CH3:26])=[CH:4][N:5]([S:14]([C:17]2[CH:18]=[N:19][CH:20]=[CH:21][C:22]=2[CH3:23])(=[O:16])=[O:15])[C:6]=1[C:7]1[C:8]([F:13])=[N:9][CH:10]=[CH:11][CH:12]=1

Participants

5

Reactant 2

HCID 444972Fumaric AcidHCID 671775211-{4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(4-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine

Product 1

HCID 671784281-{4-Fluoro-5-(2-fluoropyridin-3-yl)-1-[(4-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine fumarateYield 81%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of tert-butyl ({4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(4-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}methyl)methylcarbamate (127 mg) in ethyl acetate (2 mL) and 2-propanol (0.5 mL) was added 4N hydrogen chloride-ethyl acetate solution (2 mL), and the mixture was stirred at room temperature for 2 hr. The reaction mixture was concentrated under reduced pressure, and the residue was diluted with saturated aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The separated aqueous layer was extracted again with ethyl acetate. Combined organic layers were washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure to give 1-{4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(4-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine as a pale-yellow oil (yield 97 mg, 97%). A solution of the obtained 1-{4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(4-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine in ethyl acetate (2 mL) was added dropwise to a solution of fumaric acid (30 mg) in ethanol (2 mL) and concentrated under reduced pressure. The residue was recrystallized from ethanol to give the title compound as a white solid (yield 103 mg, 81%).

Workup

  1. concentrationconcentrated under reduced pressure
  2. customThe residue was recrystallized from ethanol

Sources & evidence

ORD record
ord-53b8390b7e724d8db866849547fd80ce
Source dataset
uspto-grants-2015_03
Patent number
US08993598B2

Reaction notes

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