Trifluoroacetic acid → 1-({3,4-Difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine

HRID 1717534Notes

Reaction equation

HRID 1717534 reaction equation
[F:1][C:2]1[C:3]([NH:23][C:24]2[CH:29]=[CH:28][C:27]([I:30])=[CH:26][C:25]=2[F:31])=[C:4]([C:9]([N:11]2[CH2:14][CH:13]([NH:15]C(=O)OC(C)(C)C)[CH2:12]2)=[O:10])[CH:5]=[CH:6][C:7]=1[F:8].FC(F)(F)C(O)=O>ClCCl>[F:1][C:2]1[C:3]([NH:23][C:24]2[CH:29]=[CH:28][C:27]([I:30])=[CH:26][C:25]=2[F:31])=[C:4]([C:9]([N:11]2[CH2:14][CH:13]([NH2:15])[CH2:12]2)=[O:10])[CH:5]=[CH:6][C:7]=1[F:8]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 162218911,1-Dimethylethyl [1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]carbamate

Product 1

HCID 162218891-({3,4-Difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amineYield 95%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 1,1-dimethylethyl [1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]carbamate (113 mg, 0.20 mmol) and trifluoroacetic acid (500 μL) in dichloromethane (2 mL) was added stirred at room temperature for one hour then was partitioned between saturated aqueous sodium bicarbonate, and dichloromethane. The organic portion was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated to afford a colorless residue which was purified by column chromatography eluting with 10% methanol in dichloromethane to afford 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine (85 mg, 95% yield) as a white foam. 1H NMR (400 MHz, CDCl3): 8.53 (s, 1H), 7.39 (d, 1H), 7.32 (d, 1H), 7.13-7.09 (m, 1H), 6.84-6.77 (m, 1H), 6.63-6.57 (m, 1H), 4.46-4.39 (m, 2H), 3.98-3.75 (br m, 4H); MS (EI) for C16H13F3IN3O: 448 (MH+).

Workup

  1. customthen was partitioned between saturated aqueous sodium bicarbonate, and dichloromethane
  2. washThe organic portion was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customto afford a colorless residue which
  7. customwas purified by column chromatography
  8. washeluting with 10% methanol in dichloromethane

Sources & evidence

ORD record
ord-a691a16c30964b1093f65f88738296a2
Source dataset
uspto-grants-2010_09
Patent number
US07803839B2

Reaction notes

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