Pyridine → HCID 3825544, compound

HRID 1766289Notes

Reaction equation

HRID 1766289 reaction equation
[CH2:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10](Cl)(=[O:12])=[O:11])=[CH:6][CH:5]=1)[CH2:2][CH3:3].N1C=CC=CC=1.[NH2:20][C:21]1[CH:22]=[C:23]2[C:28](=[CH:29][CH:30]=1)[N:27]=[CH:26][CH:25]=[CH:24]2.C([O-])(O)=O.[Na+]>ClCCl>[CH2:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10]([NH:20][C:21]2[CH:22]=[C:23]3[C:28](=[CH:29][CH:30]=2)[N:27]=[CH:26][CH:25]=[CH:24]3)(=[O:12])=[O:11])=[CH:6][CH:5]=1)[CH2:2][CH3:3]

Participants

6

Reactant 4

HCID 1049PyridineHCID 113736-AminoquinolineHCID 516892Sodium BicarbonateHCID 27372224-N-Propylbenzenesulphonyl chloride

Product 1

HCID 3825544HCID 3825544, compoundYield 93%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 4n-propylbenzenesulphonyl chloride (159 mg, 0.728 mmol) in dichloromethane (4 mL) was added pyridine (140 μL, 1.74 mmol) and the mixture was stirred under N2 for 5 min, after which time 6-aminoquinoline (100 mg, 0.694 mmol) was added. The resulting mixture was stirred for 2 h at room temperature, then saturated NaHCO3 solution (10 mL) was added and the mixture was extracted into ethyl acetate (20 mL). The organic phase was washed with brine, dried (Na2SO4), filtered and evaporated to give a residue that was purified using flash chromatography to afford a white solid (210 mg, 93%), single spot at Rf 0.71 (ethyl acetate). mp 180.1-180.7° C., HPLC purity 99+% (tR 2.37 min in 10% water-acetonitrile). 1H NMR (CDCl3): δ 8.83 (1H, dd, J=4.2, 1.7 Hz), 8.05 (1H, d, J=8.4 Hz), 7.97 (1H, d, J=9.2 Hz), 7.70 (2H, d, J=8.2 Hz), 7.57 (1H, d, J=2.5 Hz), 7.40-7.34 (2H, m), 7.22 (2H, m), 6.85 (1H, s, N—H, 2.57 (2H, t, J=7.2 Hz), 1.57 (2H, sextet, J=7.2 Hz), 0.87 (3H, t, J=7.3 Hz). LCMS: 325.23 (M−). FAB-MS (MH+, C18H18N2O2S): calcd 327.1167, found 327.1167.

Workup

  1. stirringThe resulting mixture was stirred for 2 h at room temperature
  2. extractionthe mixture was extracted into ethyl acetate (20 mL)
  3. washThe organic phase was washed with brine
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. customevaporated
  7. customto give a residue that
  8. customwas purified

Sources & evidence

ORD record
ord-ccf67c410aeb4c7eb71d71d02cb78d21
Source dataset
uspto-grants-2007_06
Patent number
US07230020B2

Reaction notes

Loading…