Sodium Bicarbonate → HCID 22989340, compound

HRID 1169066Notes

Reaction equation

HRID 1169066 reaction equation
[C:1]1([CH:7]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][NH2:18])[CH2:11][CH2:10]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Cl:25][C:26]1[CH:27]=[CH:28][C:29]2[N:30]([CH:32]=[C:33]([C:35]([CH3:42])([CH3:41])[C:36]([N:38]([CH3:40])[CH3:39])=[O:37])[N:34]=2)[N:31]=1.C(=O)(O)[O-].[Na+]>>[ClH:25].[ClH:25].[C:19]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][NH:18][C:26]3[CH:27]=[CH:28][C:29]4[N:30]([CH:32]=[C:33]([C:35]([CH3:42])([CH3:41])[C:36]([N:38]([CH3:39])[CH3:40])=[O:37])[N:34]=4)[N:31]=3)[CH2:11][CH2:10]2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

4

Reactant 3

HCID 516892Sodium BicarbonateHCID 109693934-(Diphenylmethoxy)-1-piperidinepropaneamineHCID 10978418HCID 10978418, compound

Product 1

HCID 22989340HCID 22989340, compoundYield 164.2%

Procedure

1.04 g of 4-(diphenylmethoxy)-1-piperidinepropanamine and 0.426 g of 2-(6-chloroimidazo[1,2-b]pyridazin-2-yl)-N,N,2-trimethylpropionamide were stirred at 190-200° C. for 60 minutes. After cooling, aqueous sodium bicarbonate was added, followed by extraction with ethyl acetate. The extract was washed with saline, dried over magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate:methanol:triethylamine (85:15:1). The desired fraction was collected; the residue was dissolved in 10 ml of ethyl acetate; 1.5 ml of a 4 N hydrogen chloride solution in ethyl acetate was added, followed by concentration under reduced pressure. The residue was recrystallized from acetone to yield 0.823 g of the title compound.

Workup

  1. temperatureAfter cooling
  2. extractionfollowed by extraction with ethyl acetate
  3. washThe extract was washed with saline
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. washeluted with ethyl acetate:methanol:triethylamine (85:15:1)
  7. customThe desired fraction was collected
  8. dissolutionthe residue was dissolved in 10 ml of ethyl acetate
  9. addition1.5 ml of a 4 N hydrogen chloride solution in ethyl acetate was added
  10. concentrationfollowed by concentration under reduced pressure
  11. customThe residue was recrystallized from acetone

Sources & evidence

ORD record
ord-ed082c4f3ad4431bb0023dbd3978e0c1
Source dataset
uspto-grants-2003_09
Patent number
US06627630B1

Reaction notes

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