Methanol → 2-[2-(4-Bromo-phenoxy)-acetylamino]-isonicotinamide

HRID 1945457Notes

Reaction equation

HRID 1945457 reaction equation
[Br:1][C:2]1[CH:12]=[CH:11][C:5]([O:6][CH2:7][C:8]([OH:10])=O)=[C:4](Cl)[CH:3]=1.[NH2:14][C:15]1[CH:16]=[C:17]([CH:21]=[CH:22][N:23]=1)[C:18]([NH2:20])=[O:19].C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CO>CN(C1C=CN=CC=1)C.CN(C=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:6][CH2:7][C:8]([NH:14][C:15]2[CH:16]=[C:17]([CH:21]=[CH:22][N:23]=2)[C:18]([NH2:20])=[O:19])=[O:10])=[CH:11][CH:12]=1

Participants

7

Reactant 4

HCID 887MethanolHCID 3516532-AminoisonicotinamideHCID 6931572-(4-Bromo-2-chlorophenoxy)acetic acidHCID 2724699PyBOP

Product 1

HCID 580013402-[2-(4-Bromo-phenoxy)-acetylamino]-isonicotinamideYield 58.7%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

To solution of (4-bromo-2-chloro-phenoxy)-acetic acid (100 mg, 0.37 mmol), 2-amino isonicotinamide (77.89 mg, 0.56 mmol) and DMAP (92.58 mg, 0.75 mmol) in DMF 5 ml was added PyBOP (394.3 mg, 0.75 mmol), and stirred room temperature. Reaction mixture was poured onto ice cold water, diluted by methanol/MC mixture (10%). The organic phase was separated, sequentially washed with aqueous sodium bicarbonate, brine and water, dried over anhydrous MgSO4, and concentrated. The residue was purified by PLC (EtoAC:Hexane:MeOH=3:6:1˜2:4:1) to afford 2-[2-(4-bromo-phenoxy)-acetylamino]-isonicotinamide as a colorless solid (0.076 g, 52% yield).

Workup

  1. customReaction mixture
  2. additionwas poured onto ice cold water
  3. customThe organic phase was separated
  4. washsequentially washed with aqueous sodium bicarbonate, brine and water
  5. dry with materialdried over anhydrous MgSO4
  6. concentrationconcentrated
  7. customThe residue was purified by PLC (EtoAC:Hexane:MeOH=3:6:1˜2:4:1)

Sources & evidence

ORD record
ord-e421505c5c9042058fd3342e659c3a8c
Source dataset
uspto-grants-2013_03
Patent number
US08394799B2

Reaction notes

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