Water → (1S)-1-{(4S)-2-[5-(3-{[(2S)-1-Methoxypropan-2-yl]oxy}-5-{[5-(methylsulfonyl)pyrazin-2-yl]oxy}phenyl)-1H-pyrrol-2-yl]-4,5-dihydro-1,3-oxazol-4-yl}ethanol

HRID 1964693Notes

Reaction equation

HRID 1964693 reaction equation
[OH:1][C@H:2]([C@@H:4]1[CH2:8][O:7][C:6]([C:9]2[NH:13][C:12]([C:14]3[CH:15]=[C:16]([OH:26])[CH:17]=[C:18]([O:20][C@@H:21]([CH3:25])[CH2:22][O:23][CH3:24])[CH:19]=3)=[CH:11][CH:10]=2)=[N:5]1)[CH3:3].Cl[C:28]1[CH:33]=[N:32][C:31]([S:34]([CH3:37])(=[O:36])=[O:35])=[CH:30][N:29]=1.C(=O)([O-])[O-].[K+].[K+].O>C(#N)C>[CH3:24][O:23][CH2:22][C@@H:21]([O:20][C:18]1[CH:19]=[C:14]([C:12]2[NH:13][C:9]([C:6]3[O:7][CH2:8][C@@H:4]([C@@H:2]([OH:1])[CH3:3])[N:5]=3)=[CH:10][CH:11]=2)[CH:15]=[C:16]([O:26][C:28]2[CH:33]=[N:32][C:31]([S:34]([CH3:37])(=[O:36])=[O:35])=[CH:30][N:29]=2)[CH:17]=1)[CH3:25]

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 666828653-(5-{(4S)-4-[(1S)-1-Hydroxyethyl]-4,5-dihydro-1,3-oxazol-2-yl}-1H-pyrrol-2-yl)-5-{[(2S)-1-methoxypropan-2-yl]oxy}phenolHCID 866495742-Chloro-5-(methylsulfonyl)pyrazine

Product 1

HCID 51042424(1S)-1-{(4S)-2-[5-(3-{[(2S)-1-Methoxypropan-2-yl]oxy}-5-{[5-(methylsulfonyl)pyrazin-2-yl]oxy}phenyl)-1H-pyrrol-2-yl]-4,5-dihydro-1,3-oxazol-4-yl}ethanolYield 79.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

3-(5-{(4S)-4-[(1S)-1-Hydroxyethyl]-4,5-dihydro-1,3-oxazol-2-yl}-1H-pyrrol-2-yl)-5-{[(2S)-1-methoxypropan-2-yl]oxy}phenol (880 mg, 2.44 mmol) synthesized in Example (112c) was dissolved in acetonitrile (20 mL), and 2-chloro-5-(methylsulfonyl)pyrazine (630 mg, 3.27 mmol) synthesized in Example (97c) and potassium carbonate (1.20 g, 8.68 mmol) were added, followed by stirring at room temperature for 4 hours under nitrogen atmosphere. Water (50 mL) was added, and extraction was carried out with methylene chloride (50 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: methanol/methylene chloride=1%-3%) to afford the desired compound (1.00 g, yield 79%) 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: methanol/methylene chloride=1%-3%)

Sources & evidence

ORD record
ord-b206d510c2254b7b986816599a93a2ca
Source dataset
uspto-grants-2013_04
Patent number
US08415359B2

Reaction notes

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