Triethylamine → N-(3-{(1S)-1-[(6-chloropyrazin-2-yl)amino]ethyl}phenyl)pyridine-3-sulfonamide

HRID 1255831Notes

Reaction equation

HRID 1255831 reaction equation
Cl.[N:2]1[CH:7]=[CH:6][CH:5]=[C:4]([S:8](Cl)(=[O:10])=[O:9])[CH:3]=1.[NH2:12][C:13]1[CH:14]=[C:15]([C@@H:19]([NH:21][C:22]2[CH:27]=[N:26][CH:25]=[C:24]([Cl:28])[N:23]=2)[CH3:20])[CH:16]=[CH:17][CH:18]=1.C(N(CC)CC)C>ClCCl.C(OCC)(=O)C>[Cl:28][C:24]1[N:23]=[C:22]([NH:21][C@H:19]([C:15]2[CH:14]=[C:13]([NH:12][S:8]([C:4]3[CH:3]=[N:2][CH:7]=[CH:6][CH:5]=3)(=[O:10])=[O:9])[CH:18]=[CH:17][CH:16]=2)[CH3:20])[CH:27]=[N:26][CH:25]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 12571517Pyridine-3-sulfonyl chloride hydrochlorideHCID 25218447(S)-N-(1-(3-aminophenyl)ethyl)-6-chloropyrazin-2-amine

Product 1

HCID 25218450N-(3-{(1S)-1-[(6-chloropyrazin-2-yl)amino]ethyl}phenyl)pyridine-3-sulfonamideYield 28.2%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of pyridine-3-sulfonylchloride hydrochloride (94 mg, 0.44 mmol) and N-[(1S)-1-(3-aminophenyl)ethyl]-6-chloropyrazin-2-amine (100 mg, 0.4 mmol) in dichloromethane (5 mL) was added triethylamine (0.17 mL, 1.2 mmol) dropwise at room temperature and the mixture was stirred for 17 hours. After this time the mixture was diluted with ethyl acetate (20 mL), washed successively with saturated aqueous sodium hydrogen carbonate (2×20 mL) and brine (20 mL), dried (Na2SO4) and concentrated under reduced pressure to give a yellow oil which was purified by flash chromatography (silica, ethyl acetate/hexanes) to give N-(3-{(1S)-1-[(6-chloropyrazin-2-yl)amino]ethyl}phenyl)pyridine-3-sulfonamide (44 mg, 28%) as a pale yellow foam.

Workup

  1. washwashed successively with saturated aqueous sodium hydrogen carbonate (2×20 mL) and brine (20 mL)
  2. dry with materialdried (Na2SO4)
  3. concentrationconcentrated under reduced pressure
  4. customto give a yellow oil which
  5. customwas purified by flash chromatography (silica, ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-90a266f418464409b1260e010899da93
Source dataset
uspto-grants-2013_06
Patent number
US08461161B2

Reaction notes

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