4-Aminopyridine → HCID 22054337, compound

HRID 1830379Notes

Reaction equation

HRID 1830379 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][N:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.[Cl-].ClC1N(C)CC[NH+]1C.[CH3:24][O:25][C:26]1[C:27](=[O:54])[C:28]([CH3:53])=[C:29]([CH2:35][C:36]2[CH:37]=[CH:38][C:39]([O:45][CH2:46][C:47]3[CH:48]=[N:49][CH:50]=[CH:51][CH:52]=3)=[C:40]([CH:44]=2)[C:41](O)=[O:42])[C:30](=[O:34])[C:31]=1[O:32][CH3:33]>C(Cl)Cl>[N:5]1[CH:6]=[CH:7][C:2]([NH:1][C:41](=[O:42])[C:40]2[CH:44]=[C:36]([CH2:35][C:29]3[C:30](=[O:34])[C:31]([O:32][CH3:33])=[C:26]([O:25][CH3:24])[C:27](=[O:54])[C:28]=3[CH3:53])[CH:37]=[CH:38][C:39]=2[O:45][CH2:46][C:47]2[CH:48]=[N:49][CH:50]=[CH:51][CH:52]=2)=[CH:3][CH:4]=1

Participants

6

Reactant 4

HCID 17274-AminopyridineHCID 8471TriethylamineHCID 109867151H-Imidazolium, 2-chloro-4,5-dihydro-1,3-dimethyl-, chlorideHCID 220541715-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-(3-pyridylmethyloxy)benzoic Acid

Product 1

HCID 22054337HCID 22054337, compoundYield 9.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-Aminopyridine (0.141 g, 1.500 mmol), triethylamine (0.152 g, 1.500 mmol) and 2-chloro-1,3-dimethylimidazolinium chloride (0.254 g, 1.500 mmol) were added to a methylene chloride solution (100 ml) of 5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-(3-pyridylmethyloxy)benzoic acid (0.2115 g, 0.500 mmol) and the resulting solution was stirred at room temperature for 10 hours. The reaction solution was poured into ice water and then extracted with methylene chloride. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1) and then recrystallized from ether to obtain the titled compound (0.023 g, 0.0460 mmol, 9%).

Workup

  1. extractionextracted with methylene chloride
  2. washThe extract was washed with water
  3. customdried
  4. customthe solvent was removed by distillation
  5. customThe obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1)
  6. customrecrystallized from ether

Sources & evidence

ORD record
ord-cdc119a9beaa41ce9e71c45b28a584d8
Source dataset
uspto-grants-2006_06
Patent number
US07064124B2

Reaction notes

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