delta-Oxobenzenepentanoic acid → HCID 67067313, compound

HRID 599635Notes

Reaction equation

HRID 599635 reaction equation
C(N(C(C)C)CC)(C)C.[CH3:10][O:11][C:12]1[CH:13]=[C:14](/[CH:24]=[CH:25]/[C:26]([NH:28][NH2:29])=[O:27])[CH:15]=[CH:16][C:17]=1[N:18]1[CH:22]=[C:21]([CH3:23])[N:20]=[CH:19]1.[C:30]([CH2:38][CH2:39][CH2:40][C:41](O)=[O:42])(=[O:37])[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.C1N(P(Cl)(N2C(=O)OCC2)=O)C(=O)OC1.C(=O)(O)[O-].[Na+]>C(Cl)Cl>[CH3:10][O:11][C:12]1[CH:13]=[C:14](/[CH:24]=[CH:25]/[C:26]([NH:28][NH:29][C:41](=[O:42])[CH2:40][CH2:39][CH2:38][C:30](=[O:37])[C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)=[O:27])[CH:15]=[CH:16][C:17]=1[N:18]1[CH:22]=[C:21]([CH3:23])[N:20]=[CH:19]1

Participants

7

Reactant 5

HCID 73914delta-Oxobenzenepentanoic acidHCID 81531DiisopropylethylamineHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 516892Sodium BicarbonateHCID 59528038HCID 59528038, compound

Product 1

HCID 67067313HCID 67067313, compoundYield 89.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

IPEA (2.5 mL) was added to a suspension of (E)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl]acrylic acid hydrazide (500 mg) in methylene chloride (12 mL) at room temperature, and the reaction solution was stirred at room temperature for 10 minutes. 4-benzoylbutyric acid (334 mg) and BOPCl (442 mg) were added to the reaction solution at room temperature, and the reaction solution was stirred at room temperature for four hours. A saturated sodium bicarbonate solution was added to the reaction solution, followed by extraction with chloroform. The resulting extract was dried over magnesium sulfate and then concentrated under reduced pressure to obtain 5-oxo-5-phenylpentanoic acid N′-{(E)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl]acryloyl}hydrazide (692 mg). Imidazole (494 mg), carbon tetrabromide (2.36 g) and triphenylphosphine (559 mg) were added to a suspension of 5-oxo-5-phenylpentanoic acid N′-{(E)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl]acryloyl}hydrazide (634 mg) in methylene chloride (15 mL) at room temperature, and the reaction solution was stirred at room temperature for 12 hours. The reaction solution was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (elution solvent: heptane-ethyl acetate system, then ethyl acetate-methanol system) to obtain 515 mg of the title compound. The property value of the compound is as follows.

Workup

  1. stirringthe reaction solution was stirred at room temperature for four hours
  2. extractionfollowed by extraction with chloroform
  3. extractionThe resulting extract
  4. dry with materialwas dried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-b82db20ff2c64371994e17eb5d8cfa6f
Source dataset
uspto-grants-2011_03
Patent number
US07897632B2

Reaction notes

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