Diisopropylethylamine → 4-(4-(1-Benzyl-2-oxo-1,2-dihydropyridine-3-carboxamido)-2-fluorophenoxy)picolinamide

HRID 2374096Notes

Reaction equation

HRID 2374096 reaction equation
[CH2:1]([N:8]1[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([OH:16])=O)[C:9]1=[O:17])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:18][C:19]1[CH:34]=[CH:33][C:22]([O:23][C:24]2[CH:29]=[CH:28][N:27]=[C:26]([C:30]([NH2:32])=[O:31])[CH:25]=2)=[C:21]([F:35])[CH:20]=1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[CH2:1]([N:8]1[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([NH:18][C:19]2[CH:34]=[CH:33][C:22]([O:23][C:24]3[CH:29]=[CH:28][N:27]=[C:26]([C:30]([NH2:32])=[O:31])[CH:25]=3)=[C:21]([F:35])[CH:20]=2)=[O:16])[C:9]1=[O:17])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 27640211-Benzyl-2-oxo-1,2-dihydropyridine-3-carboxylic acidHCID 231532054-(4-Amino-2-fluorophenoxy)picolinamide

Product 1

HCID 598529484-(4-(1-Benzyl-2-oxo-1,2-dihydropyridine-3-carboxamido)-2-fluorophenoxy)picolinamideYield 69.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A homogeneous solution of 1-benzyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (0.10 g, 0.41 mmol, 1.0 eq), 4-(4-amino-2-fluorophenoxy)picolinamide (0.10 g, 0.41 mmol, 1.0 eq) and TBTU (0.17 g, 0.45 mmol, 1.1 eq) in DMF (2 mL) was treated with DIPEA (0.18 mL, 1.0 mmol, 2.5 eq) at room temperature and the reaction mixture was stirred for 12 h. The reaction mixture was quenched with 10% aqueous LiCl (15 mL) and the resulting solution was extracted with ethyl acetate (4×40 mL). The combined organic extracts were washed with 10% aqueous LiCl (4×50 mL), dried (Na2SO4), filtered and the filtrate concentrated in vacuo. The residue was purified by flash column chromatography (SiO2, eluting with ethyl acetate) to afford the product (0.13 g, 67%) as a solid. 1H NMR (DMSO-d6) δ 12.26 (s, 1H), 8.49-8.56 (m, 2H), 8.33-8.36 (m, 1H), 8.15 (br m, 1H), 8.03-8.07 (m, 1H), 7.74-7.75 (m, 1H), 7.51-7.54 (m, 1H), 7.41-7.46 (m, 4H), 7.20-7.24 (m, 3H), 6.71 (dd, 1H, J=6.89 Hz), 5.32 (s, 2H)HRMS(ESI+), Calcd.: 477.1374, found: 477.1378.

Workup

  1. customThe reaction mixture was quenched with 10% aqueous LiCl (15 mL)
  2. extractionthe resulting solution was extracted with ethyl acetate (4×40 mL)
  3. washThe combined organic extracts were washed with 10% aqueous LiCl (4×50 mL)
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. concentrationthe filtrate concentrated in vacuo
  7. customThe residue was purified by flash column chromatography (SiO2, eluting with ethyl acetate)

Sources & evidence

ORD record
ord-280e17c1636f4aa0a1a0497f897e61cd
Source dataset
uspto-grants-2008_12
Patent number
US07459562B2

Reaction notes

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