Triethylamine → t-Butyl 2-{3-(4-acetylphenoxy)-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-5-(1,3-thiazol-2-yl)-1H-pyrrole-1-carboxylate

HRID 909496Notes

Reaction equation

HRID 909496 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([C:14]2[N:15]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[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.[C:31]([C:34]1[CH:39]=[CH:38][C:37](B(O)O)=[CH:36][CH:35]=1)(=[O:33])[CH3:32].C(N(CC)CC)C>ClCCl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[C:31]([C:34]1[CH:39]=[CH:38][C:37]([O:1][C:2]2[CH:3]=[C:4]([C:14]3[N:15]([C:24]([O:26][C:27]([CH3:29])([CH3:28])[CH3:30])=[O:25])[C:16]([C:19]4[S:20][CH:21]=[CH:22][N:23]=4)=[CH:17][CH:18]=3)[CH:5]=[C:6]([O:8][C@@H:9]([CH3:13])[CH2:10][O:11][CH3:12])[CH:7]=2)=[CH:36][CH:35]=1)(=[O:33])[CH3:32]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 37021224-Acetylphenylboronic acidHCID 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 66683501t-Butyl 2-{3-(4-acetylphenoxy)-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-5-(1,3-thiazol-2-yl)-1H-pyrrole-1-carboxylateYield 62.2%

Reagents, catalysts & solvents 2

HCID 8895Cupric acetateCatalystHCID 6344DichloromethaneSolvent

Procedure

t-Butyl 2-{3-hydroxy-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-5-(1,3-thiazol-2-yl)-1H-pyrrole-1-carboxylate (92 mg, 0.214 mmol) synthesized in Example (38d) was dissolved in dichloromethane (10 mL), and 4-acetylphenylboronic acid (70 mg, 0.427 mmol), copper (II) acetate (60 mg, 0.330 mmol), triethylamine (0.15 mL, 1.08 mmol) and molecular sieves 4A (90 mg) were added, followed by stirring at room temperature for 1 day under nitrogen atmosphere. The deposit of this reaction solution was Celite filtered. This mother liquor was distilled off under reduced pressure, and the resulting residue was purified using silica gel column chromatography (elution solvent: ethyl acetate/hexane=15%-25%) to afford the desired compound (73 mg, yield 62%) as a yellow oil.

Workup

  1. filtrationfiltered
  2. distillationThis mother liquor was distilled off under reduced pressure
  3. customthe resulting residue was purified
  4. washsilica gel column chromatography (elution solvent: ethyl acetate/hexane=15%-25%)

Sources & evidence

ORD record
ord-76912bd8ffe74542b1d5abc9b11f2bba
Source dataset
uspto-grants-2011_09
Patent number
US08017610B2

Reaction notes

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