Dimethylformamide → 4-[2-(3-(4-methoxy-3,4,5,6-tetrahydro-2H-pyran-4-yl)phenoxy)-4-phenyl-5-oxazolyl]benzenesulfonamide

HRID 1839549Notes

Reaction equation

HRID 1839549 reaction equation
Cl[C:2]1[O:3][C:4]([C:13]2[CH:18]=[CH:17][C:16]([S:19]([NH2:22])(=[O:21])=[O:20])=[CH:15][CH:14]=2)=[C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:6]=1.[CH3:23]N(C=O)C.C(=O)([O-])[O-].[K+].[K+].[OH:34][C:35]1[CH:36]=[C:37]([CH:41]2[CH2:46][CH:45]([O:47][CH3:48])C[CH2:43][O:42]2)[CH:38]=[CH:39][CH:40]=1>C(OCC)(=O)C>[CH3:43][O:42][C:41]1([C:37]2[CH:36]=[C:35]([CH:40]=[CH:39][CH:38]=2)[O:34][C:2]2[O:3][C:4]([C:13]3[CH:18]=[CH:17][C:16]([S:19]([NH2:22])(=[O:21])=[O:20])=[CH:15][CH:14]=3)=[C:5]([C:7]3[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=3)[N:6]=2)[CH2:46][CH2:45][O:47][CH2:48][CH2:23]1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 222460994-(2-Chloro-4-phenyl-5-oxazolyl)benzenesulfonamideHCID 22246254(3-hydroxyphenyl)-4-methoxy-3,4,5,6-tetrahydro-2H-pyran

Product 1

HCID 129861274-[2-(3-(4-methoxy-3,4,5,6-tetrahydro-2H-pyran-4-yl)phenoxy)-4-phenyl-5-oxazolyl]benzenesulfonamideYield 44%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

4-[2-Chloro-4-phenyl-5-oxazolyl]benzenesulfonamide from Example 4, Step 3, (0.6 g, 1.8 mmol), DMF (20 mL), potassium carbonate (0.5 g, 3.6 mmol), and 4 (3-hydroxyphenyl)-4-methoxy-3,4,5,6-tetrahydro-2H-pyran (0.37 g, 1.8 mmol) [prepared as described by G. C. Crawley, et al, J. Med. Chem., 35, 2600-2609 (1992)] were stirred at room temperature for 16.0 hours. The solution was diluted with ethyl acetate (100 mL) , washed with 1N HCl, brine and water, dried over MgSO4 and concentrated. The residue was dissolved in ethyl acetate/hexanes (1:1) and filtered through silica. The eluant was concentrated and the residue recrystallized from ethyl acetate/hexanes to give 4-[2-[3-(4-methoxy-3,4,5,6-tetrahydro-2H-pyran-4-yl)phenoxy]-4-phenyl-5-oxazolyl]benzenesulfonamide as a white solid (0.4 g, 44%): mp 145-147° C. 1H NMR (CDCl3) 300 MHz δ 7.88 (d, J=8.9 Hz, 2H) 7.70 (d, J=8.9 Hz, 2H) 7.6 (m, 2H) 7.36-7.5 (m, 6H) 7.0-7.1 (dt, J=6.4 Hz and J=2.2 Hz, 1H) 4.85 (bs, 2H) 3.7 (m, 4H) 3.05 (s, 3H) 2.0 (m, 4H). Final. Calc'd. for C27H26N2O6S: C, 64.02; H, 5.17; N, 5.53. Found: C, 63.94; H, 5.17; N, 5.55.

Workup

  1. washwashed with 1N HCl, brine and water
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated
  4. dissolutionThe residue was dissolved in ethyl acetate/hexanes (1:1)
  5. filtrationfiltered through silica
  6. concentrationThe eluant was concentrated
  7. customthe residue recrystallized from ethyl acetate/hexanes

Sources & evidence

ORD record
ord-aecc5a051ca0443891a23d7d1e337040
Source dataset
uspto-grants-2004_01
Patent number
US06677364B2

Reaction notes

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