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

HRID 1964565Notes

Reaction equation

HRID 1964565 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.[CH3:31][O:32][C:33]([C:35]1[CH:40]=[CH:39][C:38](B(O)O)=[CH:37][CH:36]=1)=[O:34].C(N(CC)CC)C>ClCCl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[CH3:31][O:32][C:33]([C:35]1[CH:40]=[CH:39][C:38]([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:37][CH:36]=1)=[O:34]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 27343694-Methoxycarbonylphenylboronic 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 66683331t-Butyl 2-{3-[4-(methoxycarbonyl)phenoxy]-5-[(1S)-2-methoxy-1-methylethoxy]phenyl}-5-(1,3-thiazol-2-yl)-1H-pyrrole-1-carboxylateYield 46%

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 (117 mg, 0.272 mmol) synthesized in Example (38d) was dissolved in dichloromethane (20 mL), and 4-methoxycarbonylphenyl boronic acid (100 mg, 0.556 mmol), copper (II) acetate (80 mg, 0.440 mmol), triethylamine (0.20 mL, 1.435 mmol) and molecular sieves 4A (100 mg) were added, followed by stirring at room temperature for 3 days 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 (70 mg, yield 46%) 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-a56e42e9aa3247c2a9affecd4780745e
Source dataset
uspto-grants-2013_04
Patent number
US08415359B2

Reaction notes

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