Hydrochloric Acid → HCID 67051623, compound
Reaction equation
[F:1][C:2]1[C:3]([NH:25][C:26]2[CH:31]=[CH:30][C:29]([I:32])=[CH:28][C:27]=2[F:33])=[C:4]([C:9]([N:11]2[CH2:14][C:13]([CH2:16][NH:17]/[C:18](/SC)=[CH:19]/[N+:20]([O-:22])=[O:21])([OH:15])[CH2:12]2)=[O:10])[CH:5]=[CH:6][C:7]=1[F:8].[OH-].[NH4+:35].[ClH:36].O1CCOCC1>C(O)C.CO>[ClH:36].[NH2:35]/[C:18](/[NH:17][CH2:16][C:13]1([OH:15])[CH2:14][N:11]([C:9]([C:4]2[CH:5]=[CH:6][C:7]([F:8])=[C:2]([F:1])[C:3]=2[NH:25][C:26]2[CH:31]=[CH:30][C:29]([I:32])=[CH:28][C:27]=2[F:33])=[O:10])[CH2:12]1)=[CH:19]\[N+:20]([O-:22])=[O:21]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 70 °C
Procedure
To a solution of (0.05 g 0.08 mmol) 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(Z)-1-(methylthio)-2-nitroethenyl]amino}methyl)azetidin-3-ol in ethanol (2 mL) was added ammonium hydroxide (0.1 mL, 0.8 mmol) and the reaction mixture was stirred at 70° C. for 16 hours. The reaction mixture was concentrated in vacuo. The crude product was purified by reverse phase preparative HPLC. The fractions were collected and the solvent was concentrated. The residue was partitioned with ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate, brine and dried over anhydrous sodium sulfate. Filtration and concentration resulted in an amorphous residue, which was dissolved in methanol, and 4 N HCl in dioxane (40 μL, 0.16 mmol) was added to the solution. A white precipitate formed and was collected by vacuum filtration. The solid was washed with hexane, and dried to afford 42 mg (87%) 3-({[(E)-1-amino-2-nitroethenyl]amino}methyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol hydrochloride. 1H NMR (400 MHz, d4-MeOH): 7.58 (t, 0.5H), 7.44 (t, 0.5H), 7.36 (m, 1H), 7.31 (m, 1H), 7.04 (m, 1H), 6.63 (m, 1H), 3.90-4.30 (m, 4H) 3.72 (s, 2H); MS (EI) for C19H17F3IN5O4: 564 (MH+).
Workup
- concentrationThe reaction mixture was concentrated in vacuo
- customThe crude product was purified by reverse phase preparative HPLC
- customThe fractions were collected
- concentrationthe solvent was concentrated
- customThe residue was partitioned with ethyl acetate
- washThe organic layer was washed with saturated aqueous sodium bicarbonate, brine
- dry with materialdried over anhydrous sodium sulfate
- filtrationFiltration and concentration
- customresulted in an amorphous residue, which
- customA white precipitate formed
- filtrationwas collected by vacuum filtration
- washThe solid was washed with hexane
- customdried
Sources & evidence
- ORD record
- ord-962193d1368846509c0de5a1a3bcb8b8
- Source dataset
- uspto-grants-2011_08
- Patent number
- US07999006B2
Reaction notes
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