Hydrochloric Acid → 2-(5-{3-[4-(Azetidin-1-ylcarbonyl)-2-fluorophenoxy]-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-1H-pyrrol-2-yl)-1,3-thiazole

HRID 909500Notes

Reaction equation

HRID 909500 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([C:14]2[N:15](C(OC(C)(C)C)=O)[C:16]([C:19]3[S:20][CH:21]=[CH:22][N:23]=3)=[CH:17][CH:18]=2)[CH:5]=[C:6]([O:8][C@@H:9]([CH3:13])[CH2:10][O:11][CH3:12])[CH:7]=1.[F:31][C:32]1[CH:33]=[C:34]([CH:41]=[CH:42][C:43]=1F)[C:35]([N:37]1[CH2:40][CH2:39][CH2:38]1)=[O:36].[H-].[Na+].Cl>CS(C)=O>[N:37]1([C:35]([C:34]2[CH:41]=[CH:42][C:43]([O:1][C:2]3[CH:3]=[C:4]([C:14]4[NH:15][C:16]([C:19]5[S:20][CH:21]=[CH:22][N:23]=5)=[CH:17][CH:18]=4)[CH:5]=[C:6]([O:8][C@@H:9]([CH3:13])[CH2:10][O:11][CH3:12])[CH:7]=3)=[C:32]([F:31])[CH:33]=2)=[O:36])[CH2:40][CH2:39][CH2:38]1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 593468591-(3,4-Difluorobenzoyl)azetidineHCID 66681373t-Butyl 2-{3-hydroxy-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-5-(1,3-thiazol-2-yl)-1H-pyrrole-1-carboxylate

Product 1

HCID 580654472-(5-{3-[4-(Azetidin-1-ylcarbonyl)-2-fluorophenoxy]-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-1H-pyrrol-2-yl)-1,3-thiazoleYield 65.3%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
100 °C

Procedure

t-Butyl 2-{3-hydroxy-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-5-(1,3-thiazol-2-yl)-1H-pyrrole-1-carboxylate (70 mg, 0.163 mmol) synthesized in Example (38d) and 1-(3,4-difluorobenzoyl)azetidine (68 mg, 0.345 mmol) synthesized in Example (41a) were dissolved in dimethyl sulfoxide (3.0 mL), and sodium hydride (60%, 25 mg, 0.63 mmol) was added, followed by stirring at 100° C. for 5 hours under nitrogen atmosphere. The reaction solution was cooled to room temperature, 2N hydrochloric acid (30 mL) was added, and extraction was carried out with diethyl ether (30 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=60%-80%) to afford the desired compound (54 mg, yield 65%) as a yellow solid.

Workup

  1. temperatureThe reaction solution was cooled 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=60%-80%)

Sources & evidence

ORD record
ord-c74a16f635524d2ca4cd3196c956d495
Source dataset
uspto-grants-2011_09
Patent number
US08017610B2

Reaction notes

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