Pyridine → HCID 53629589, compound

HRID 1990286Notes

Reaction equation

HRID 1990286 reaction equation
ClC(N(C)C)=C(C)C.[N:9]1([C:13]([C:15]2[N:16]=[CH:17][C:18]([O:21][C:22]3[CH:23]=[C:24]([CH:28]=[C:29]([O:31][C@H:32]([CH3:36])[CH2:33][O:34][CH3:35])[CH:30]=3)[C:25]([OH:27])=O)=[N:19][CH:20]=2)=[O:14])[CH2:12][CH2:11][CH2:10]1.[NH2:37][C:38]1[CH:43]=[N:42][C:41]([CH3:44])=[CH:40][N:39]=1.N1C=CC=CC=1>C(Cl)Cl>[N:9]1([C:13]([C:15]2[N:16]=[CH:17][C:18]([O:21][C:22]3[CH:23]=[C:24]([CH:28]=[C:29]([O:31][C@H:32]([CH3:36])[CH2:33][O:34][CH3:35])[CH:30]=3)[C:25]([NH:37][C:38]3[CH:43]=[N:42][C:41]([CH3:44])=[CH:40][N:39]=3)=[O:27])=[N:19][CH:20]=2)=[O:14])[CH2:12][CH2:11][CH2:10]1

Participants

6

Reactant 4

HCID 1049PyridineHCID 3132155-Methylpyrazin-2-amineHCID 6407921-Chloro-N,N-2-trimethylpropenylamineHCID 59127137HCID 59127137, compound

Product 1

HCID 53629589HCID 53629589, compoundYield 68.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

1-Chloro-N,N,2-trimethyl-1-propenylamine (0.042 mL, 0.31 mmol) was added to a solution of 3-{[5-(azetidin-1-ylcarbonyl)pyrazin-2-yl]oxy}-5-{[(1R)-1-methyl-2-(methyloxy)ethyl]oxy}benzoic acid (0.102 g, 0.0.31 mmol) in DCM (3 mL) under argon and stirred at RT for 40 minutes. 2-Amino-5-methylpyrazine (57 mg, 0.52 mmol) and pyridine (0.043 mL, 0.52 mmol) were added and the reaction stirred for a further 3 hours. The solvent was removed in vacuo and the residue taken up in ethyl acetate (30 mL), washed with water (2×10 mL), a saturated aqueous solution of sodium bicarbonate (10 mL), brine (10 mL), dried (MgSO4), filtered, and evaporated in vacuo. The crude material was chromatographed on silica, eluting with a gradient of 60-100% ethyl acetate in isohexane, to give the desired compound as a white foam (86 mg).

Workup

  1. stirringthe reaction stirred for a further 3 hours
  2. customThe solvent was removed in vacuo
  3. washwashed with water (2×10 mL)
  4. dry with materiala saturated aqueous solution of sodium bicarbonate (10 mL), brine (10 mL), dried (MgSO4)
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customThe crude material was chromatographed on silica
  8. washeluting with a gradient of 60-100% ethyl acetate in isohexane

Sources & evidence

ORD record
ord-83b4646f52234b8e969bd611e85d7df2
Source dataset
uspto-grants-2010_01
Patent number
US07642259B2

Reaction notes

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