Ammonium Chloride → (4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}-3-methylphenyl)methanol

HRID 909514Notes

Reaction equation

HRID 909514 reaction equation
[CH3:1][O:2][CH2:3][C@H:4]([CH3:32])[O:5][C:6]1[CH:7]=[C:8]([CH:19]=[C:20]([C:22]2[NH:23][C:24]([C:27]3[S:28][CH:29]=[CH:30][N:31]=3)=[CH:25][CH:26]=2)[CH:21]=1)[O:9][C:10]1[CH:17]=[CH:16][C:13]([CH:14]=[O:15])=[CH:12][C:11]=1[CH3:18].[BH4-].[Na+].[Cl-].[NH4+]>CO>[CH3:1][O:2][CH2:3][C@H:4]([CH3:32])[O:5][C:6]1[CH:7]=[C:8]([CH:19]=[C:20]([C:22]2[NH:23][C:24]([C:27]3[S:28][CH:29]=[CH:30][N:31]=3)=[CH:25][CH:26]=2)[CH:21]=1)[O:9][C:10]1[CH:17]=[CH:16][C:13]([CH2:14][OH:15])=[CH:12][C:11]=1[CH3:18]

Participants

5

Reactant 3

HCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 580654454-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}-3-methylbenzaldehyde

Product 1

HCID 58065430(4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}-3-methylphenyl)methanolYield 81.3%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
0 °C

Procedure

4-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[5-(1,3-thiazol-2-yl)-1H-pyrrol-2-yl]phenoxy}-3-methylbenzaldehyde (32 mg, 0.071 mmol) synthesized in Example 51 was dissolved in methanol (3.0 mL), and sodium borohydride (5 mg, 0.132 mmol) was added, followed by stirring at 0° C. for 4 hours under nitrogen atmosphere. The reaction solution was brought to room temperature, a saturated aqueous ammonium chloride solution (10 mL) was added, and extraction was carried out with ethyl acetate (10 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=50%-75%) to afford the desired compound (26 mg, yield 81%) as a white solid.

Workup

  1. customwas brought to room temperature
  2. extractionextraction
  3. washThe organic layer was washed with saturated brine
  4. dry with materialsubsequently dried over anhydrous magnesium sulfate
  5. distillationThe solvent was distilled off under reduced pressure
  6. customthe resulting residue was purified
  7. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=50%-75%)

Sources & evidence

ORD record
ord-18a579decb49406da8d3c724f5fd3214
Source dataset
uspto-grants-2011_09
Patent number
US08017610B2

Reaction notes

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