Triethylamine → HCID 18727485, compound

HRID 720887Notes

Reaction equation

HRID 720887 reaction equation
[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([NH2:14])[CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:15]1([CH2:21][CH2:22][CH2:23][CH:24]([CH2:28][CH2:29][CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[C:25](O)=[O:26])[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.C(N(CC)CC)C.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>CN(C=O)C>[CH2:1]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:25](=[O:26])[CH:24]([CH2:23][CH2:22][CH2:21][C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[CH2:28][CH2:29][CH2:30][C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=2)[CH2:10][CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 4158521-Benzyl-4-piperidylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 21892253HCID 21892253, compound

Product 1

HCID 18727485HCID 18727485, compoundYield 87.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1-Benzyl-4-aminopiperidine (0.5 g; 2.63 mmol) is dissolved in DMF (25 mL) at ambient temperature. 5-Phenyl-2-(3-phenyl-propyl)-pentanoic acid (22) (0.78 g; 2.62 mmol), triethylamine (0.46 mL; 3.28 mmol), 1-hydroxybenzotriazole (0.444 g; 3.28 mmol), and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (0.554 g; 2.89 mmol) are added sequentially. The mixture is stirred for 18 hours at ambient temperature then poured onto ethyl acetate (250 mL) and extracted successively with water (50 mL), saturated aqueous sodium bicarbonate (50 mL), and brine (50 mL), then dried over MgSO4, filtered, and concentrated in vacuo. The residue is purified via silica gel chromatography with gradient elution (10%→67% ethyl acetate in hexanes) affording the desired product (1.07 g) as a white solid. ESMS:MH+ 469.4 (base).

Workup

  1. additionthen poured onto ethyl acetate (250 mL)
  2. extractionextracted successively with water (50 mL), saturated aqueous sodium bicarbonate (50 mL), and brine (50 mL)
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue is purified via silica gel chromatography with gradient elution (10%→67% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-d4269f544c794c8784b3b221558a01fd
Source dataset
uspto-grants-2006_11
Patent number
US07135483B2

Reaction notes

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