Hydrogen chloride-ethyl acetate → 1-{1-[(5-Chloropyridin-3-yl)sulfonyl]-4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl}-N-methylmethanamine hydrochloride

HRID 869774Notes

Reaction equation

HRID 869774 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([S:8]([N:11]2[C:15]([C:16]3[C:17]([F:22])=[N:18][CH:19]=[CH:20][CH:21]=3)=[C:14]([F:23])[C:13]([CH2:24][N:25](C)[C:26](=O)OC(C)(C)C)=[CH:12]2)(=[O:10])=[O:9])[CH:5]=[N:6][CH:7]=1.C(OCC)(=O)C.Cl>C(OCC)(=O)C.CC(O)C>[ClH:1].[Cl:1][C:2]1[CH:3]=[C:4]([S:8]([N:11]2[C:15]([C:16]3[C:17]([F:22])=[N:18][CH:19]=[CH:20][CH:21]=3)=[C:14]([F:23])[C:13]([CH2:24][NH:25][CH3:26])=[CH:12]2)(=[O:9])=[O:10])[CH:5]=[N:6][CH:7]=1

Participants

5

Reactant 2

HCID 21866389Hydrogen chloride-ethyl acetateHCID 67176466tert-Butyl ({1-[(5-chloropyridin-3-yl)sulfonyl]-4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl}methyl)methylcarbamate

Product 1

HCID 671784441-{1-[(5-Chloropyridin-3-yl)sulfonyl]-4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl}-N-methylmethanamine hydrochlorideYield 174.7%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of tert-butyl ({1-[(5-chloropyridin-3-yl)sulfonyl]-4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl}methyl)methylcarbamate (391 mg) in ethyl acetate (2 mL) and 2-propanol (1 mL) was added 4 mol/L hydrogen chloride-ethyl acetate solution (3 mL), and the mixture was stirred at room temperature for 1.5 hr. The reaction mixture was concentrated under reduced pressure, and the residue was recrystallized from ethanol to give the title compound as a white solid (yield 298 mg, 95%).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customthe residue was recrystallized from ethanol

Sources & evidence

ORD record
ord-83b094467d5d4ba7b3a3f605566804b9
Source dataset
uspto-grants-2015_03
Patent number
US08969387B2

Reaction notes

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