Water → {(4R,5S)-2-[5-(3-[(1S)-2-Methoxy-1-methylethoxy]-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}phenyl)-1H-pyrrol-2-yl]-5-methyl-4,5-dihydro-1,3-oxazol-4-yl}methanol

HRID 909592Notes

Reaction equation

HRID 909592 reaction equation
[CH3:1][O:2][CH2:3][C@H:4]([CH3:46])[O:5][C:6]1[CH:7]=[C:8]([CH:20]=[C:21]([C:23]2[NH:24][C:25]([C:28]3[O:29][C@@H:30]([CH3:45])[C@@H:31]([CH2:33][O:34][Si](C(C)C)(C(C)C)C(C)C)[N:32]=3)=[CH:26][CH:27]=2)[CH:22]=1)[O:9][C:10]1[CH:11]=[CH:12][C:13]([S:16]([CH3:19])(=[O:18])=[O:17])=[N:14][CH:15]=1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC.O>O1CCCC1>[CH3:1][O:2][CH2:3][C@H:4]([CH3:46])[O:5][C:6]1[CH:22]=[C:21]([C:23]2[NH:24][C:25]([C:28]3[O:29][C@@H:30]([CH3:45])[C@@H:31]([CH2:33][OH:34])[N:32]=3)=[CH:26][CH:27]=2)[CH:20]=[C:8]([O:9][C:10]2[CH:15]=[N:14][C:13]([S:16]([CH3:19])(=[O:17])=[O:18])=[CH:12][CH:11]=2)[CH:7]=1

Participants

5

Reactant 3

HCID 962WaterHCID 2724141Tetrabutylammonium FluorideHCID 666813045-(3-[(1S)-2-Methoxy-1-methylethoxy]-5-{5-[(4R,5S)-5-methyl-4-{[(triisopropylsilyl)oxy]methyl}-4,5-dihydro-1,3-oxazol-2-yl]-1H-pyrrol-2-yl}phenoxy)-2-(methylsulfonyl)pyridine

Product 1

HCID 44184024{(4R,5S)-2-[5-(3-[(1S)-2-Methoxy-1-methylethoxy]-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}phenyl)-1H-pyrrol-2-yl]-5-methyl-4,5-dihydro-1,3-oxazol-4-yl}methanolYield 84%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

5-(3-[(1S)-2-Methoxy-1-methylethoxy]-5-{5-[(4R,5S)-5-methyl-4-{[(triisopropylsilyl)oxy]methyl}-4,5-dihydro-1,3-oxazol-2-yl]-1H-pyrrol-2-yl}phenoxy)-2-(methylsulfonyl)pyridine (901 mg, 1.34 mmol) synthesized in Example (91c) was dissolved in tetrahydrofuran (15 mL), and tetrabutylammonium fluoride (1 mol/L tetrahydrofuran solution, 1.54 mL, 1.54 mmol) was added at 0° C., followed by stirring at room temperature for 1 hour under nitrogen atmosphere. Water (20 mL) was added, and extraction was carried out with ethyl acetate (40 mL). The organic layer was washed with saturated brine, and subsequently dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified using silica gel column chromatography (elution solvent: ethyl acetate/hexane=80%-100%) to afford the desired compound (578 mg, yield 84%) as a white solid.

Workup

  1. extractionextraction
  2. washThe organic layer was washed with saturated brine
  3. dry with materialsubsequently dried over anhydrous magnesium sulfate
  4. distillationThe solvent was distilled off under reduced pressure
  5. customthe resulting residue was purified
  6. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=80%-100%)

Sources & evidence

ORD record
ord-b6c29d7857ff462c8574bccc2c29cd77
Source dataset
uspto-grants-2011_09
Patent number
US08017610B2

Reaction notes

Loading…