1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 4-amino-5-chloro-N-((4-hydroxy-1-(6-oxo-6-phenylhexyl)-piperidin-4-yl)methyl)-2-methoxybenzamide

HRID 344533Notes

Reaction equation

HRID 344533 reaction equation
Cl.Cl.[NH2:3][CH2:4][C:5]1([OH:24])[CH2:10][CH2:9][N:8]([CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16](=[O:23])[C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH2:7][CH2:6]1.[NH2:25][C:26]1[C:34]([Cl:35])=[CH:33][C:29]([C:30](O)=[O:31])=[C:28]([O:36][CH3:37])[CH:27]=1.ON1C2C=CC=CC=2N=N1.C(N=C=NCCCN(C)C)C>CN(C)C=O.C(N(CC)CC)C>[NH2:25][C:26]1[C:34]([Cl:35])=[CH:33][C:29]([C:30]([NH:3][CH2:4][C:5]2([OH:24])[CH2:10][CH2:9][N:8]([CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16](=[O:23])[C:17]3[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=3)[CH2:7][CH2:6]2)=[O:31])=[C:28]([O:36][CH3:37])[CH:27]=1

Participants

7

Reactant 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 816264-Amino-5-chloro-2-methoxybenzoic acidHCID 700755654-Aminomethyl-4-hydroxy-1-(6-oxo-6-phenylhexyl)piperidine dihydrochloride

Product 1

HCID 538753744-amino-5-chloro-N-((4-hydroxy-1-(6-oxo-6-phenylhexyl)-piperidin-4-yl)methyl)-2-methoxybenzamideYield 79.5%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To a solution of 4-aminomethyl-4-hydroxy-1-(6-oxo-6-phenylhexyl)-piperidine dihydrochloride (2.9 g) in dimethylformamide (50 ml) were added triethylamine (3.2 ml), 4-amino-5-chloro-2-methoxybenzoic acid (1.55 g) and 1-hydroxybenzotriazole (1.09 g), which was followed by the addition of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (1.55 g) under ice cooling, and the mixture was stirred at room temperature for 6 hr. The reaction mixture was concentrated under reduced pressure, and the obtained residue was added with water and extracted with chloroform. The organic layer was washed successively with 10% aqueous solution of potassium carbonate and brine, and dried. The solvent was evaporated under reduced pressure, and the obtained residue was purified by a silica gel column chromatography (chloroform:methanol=10:1) to give 2.98 g of 4-amino-5-chloro-N-((4-hydroxy-1-(6-oxo-6-phenylhexyl)-piperidin-4-yl)methyl)-2-methoxybenzamide.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additionthe obtained residue was added with water
  3. extractionextracted with chloroform
  4. washThe organic layer was washed successively with 10% aqueous solution of potassium carbonate and brine
  5. customdried
  6. customThe solvent was evaporated under reduced pressure
  7. customthe obtained residue was purified by a silica gel column chromatography (chloroform:methanol=10:1)

Sources & evidence

ORD record
ord-28d3af8d28244930a991f8d81b245910
Source dataset
uspto-grants-1999_01
Patent number
US05864039

Reaction notes

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