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

HRID 880871
Notes
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Reaction equation

HRID 880871 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]=[C:21]([CH3:23])[CH:22]=2)(=[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]=[C:21]([CH3:23])[CH:22]=2)(=[O:16])=[O:15])[C:6]=1[C:7]1[C:8]([F:13])=[N:9][CH:10]=[CH:11][CH:12]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 444972Fumaric AcidHCID 671768851-{4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(5-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine

Product 1

HCID 671780451-{4-Fluoro-5-(2-fluoropyridin-3-yl)-1-[(5-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine fumarateYield 87%

Reagents, catalysts & solvents 2

HCID 702EthanolSolvent
HCID 8857
Ethyl Acetate
Solvent

Procedure

To a solution of tert-butyl ({4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(5-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}methyl)methylcarbamate (370 mg) in ethyl acetate (2 mL) and 2-propanol (1 mL) was added 4N hydrogen chloride-ethyl acetate solution (3 mL), and the mixture was stirred at room temperature for 3 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-[(5-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine as a pale-yellow oil (yield 256 mg, 88%). A solution of the obtained 1-{4-fluoro-5-(2-fluoropyridin-3-yl)-1-[(5-methylpyridin-3-yl)sulfonyl]-1H-pyrrol-3-yl}-N-methylmethanamine in ethyl acetate (2 mL) was added dropwise to a solution of fumaric acid (78 mg) in ethanol (2 mL) and concentrated under reduced pressure. The residue was recrystallized from ethanol-water to give the title compound as a white solid (yield 288 mg, 87%).

Workup

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

Sources & evidence

ORD record
ord-db0065db698d43628ee0a7e007f79fbf
Source dataset
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08993598B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes