Formaldehyde → HCID 22903529, compound

HRID 1489078Notes

Reaction equation

HRID 1489078 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]([C:12](=[O:29])[C:13]3[CH:18]=[CH:17][C:16]([NH:19][C:20](=[O:28])[C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=4[CH3:27])=[N:15][CH:14]=3)[CH2:10][CH2:9][CH2:8][CH:7]([O:30][CH2:31][CH2:32]N)[C:6]=2[CH:34]=1.C=O.[C:37]([BH3-])#[N:38].[Na+].[C:41](=O)([O-])[O-].[K+].[K+]>CO.C(O)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]([C:12](=[O:29])[C:13]3[CH:18]=[CH:17][C:16]([NH:19][C:20](=[O:28])[C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=4[CH3:27])=[N:15][CH:14]=3)[CH2:10][CH2:9][CH2:8][CH:7]([O:30][CH2:31][CH2:32][N:38]([CH3:37])[CH3:41])[C:6]=2[CH:34]=1

Participants

7

Reactant 4

HCID 712FormaldehydeHCID 11430Potassium CarbonateHCID 5003444Sodium cyanoborohydrideHCID 22903477HCID 22903477, compound

Product 1

HCID 22903529HCID 22903529, compound

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 887MethanolSolvent

Procedure

To a solution of 7-chloro-5-(2-aminoethoxy)-1-[6-(2-methylbenzoylamino)nicotinoyl]-2,3,4,5-tetrahydro-1H-benzazepine (0.16 g) in methanol (3 ml) are added 37% formaldhyde (0.3 ml) and sodium cyanoborohydride (0.06 g), and further thereto is added with stirring acetic acid (0.25 ml) at 10° C. The mixture is stirred at room temperature for 3 hours, and poured into ice-water. The mixture is made basic with potassium carbonate, and extracted with dichloromethane. The extract is washed with water, dried over magnesium sulfate, and evaporated under reduced pressure to remove the solvent. The residue is purified by silica gel column chromatography to give 7-chloro-5-(2-dimethylaminoethoxy)-1-[6-(2-methylbenzoylamino)nicotinoyl]-2,3,4,5-tetrahydro-1H-benzazepine (58 mg) as colorless amorphous.

Workup

  1. extractionextracted with dichloromethane
  2. washThe extract is washed with water
  3. dry with materialdried over magnesium sulfate
  4. customevaporated under reduced pressure
  5. customto remove the solvent
  6. customThe residue is purified by silica gel column chromatography

Sources & evidence

ORD record
ord-f0efa69528094f18b6dad9c04e07c35f
Source dataset
uspto-grants-1997_10
Patent number
US05677299

Reaction notes

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