Methanamine, N-methoxy-, hydrochloride (1:1) → 5-Chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid methoxy-methyl-amide

HRID 1036550Notes

Reaction equation

HRID 1036550 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:11][S:12]([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([C:22]([F:25])([F:24])[F:23])[CH:16]=2)(=[O:14])=[O:13])[C:5]([C:8]([OH:10])=O)=[N:6][CH:7]=1.Cl.[CH3:27][NH:28][O:29][CH3:30].CCN(C(C)C)C(C)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>CN(C=O)C.Cl>[CH3:30][O:29][N:28]([CH3:27])[C:8]([C:5]1[C:4]([NH:11][S:12]([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([C:22]([F:25])([F:24])[F:23])[CH:16]=2)(=[O:14])=[O:13])=[CH:3][C:2]([Cl:1])=[CH:7][N:6]=1)=[O:10]

Participants

7

Reactant 4

HCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 579420775-Chloro-3-(4-chloro-3-trifluoromethyl benzenesulfonylamino)-pyridine-2-carboxylic acid

Product 1

HCID 579421055-Chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid methoxy-methyl-amide

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 6228DimethylformamideSolvent

Procedure

5-Chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid (15.8 g, 38 mmol), N,O-dimethyl hydroxylamine hydrochloride (11.1 g, 114 mmol), DIEA (41 mL, 228 mmol), and BOP (69 g, 156 mmol), were suspended in 80 mL DMF and stirred at room temperature over night. The reaction mixture was diluted with 1 (M) HCl (100 mL), extracted with EtOAc, and the organic portions were washed with 1 (M) aqueous HCl, NaHCO3 and brine. The combined organic extracts were dried (Na2SO4), filtered and concentrated under reduced pressure. The resulting residue was purified by flash column chromatography to afford 5-chloro-3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyridine-2-carboxylic acid methoxy-methyl-amide: MS m/z: (M+H) 458.0.

Workup

  1. extractionextracted with EtOAc
  2. washthe organic portions were washed with 1 (M) aqueous HCl, NaHCO3 and brine
  3. dry with materialThe combined organic extracts were dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue was purified by flash column chromatography

Sources & evidence

ORD record
ord-ac5c21d7e70c43a4a99a7d3e6c91bc3d
Source dataset
uspto-grants-2013_10
Patent number
US08546408B2

Reaction notes

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