Pyridine → N-(6-Nitro-1-oxo-indan-5-yl)-3-cyclopentyl-propionamide

HRID 2196860Notes

Reaction equation

HRID 2196860 reaction equation
N1C=CC=CC=1.[NH2:7][C:8]1[CH:9]=[C:10]2[C:14](=[CH:15][C:16]=1[N+:17]([O-:19])=[O:18])[C:13](=[O:20])[CH2:12][CH2:11]2.[CH:21]1([CH2:26][CH2:27][C:28](Cl)=[O:29])[CH2:25][CH2:24][CH2:23][CH2:22]1>ClC(Cl)C>[N+:17]([C:16]1[CH:15]=[C:14]2[C:10]([CH2:11][CH2:12][C:13]2=[O:20])=[CH:9][C:8]=1[NH:7][C:28](=[O:29])[CH2:27][CH2:26][CH:21]1[CH2:25][CH2:24][CH2:23][CH2:22]1)([O-:19])=[O:18]

Participants

5

Reactant 3

HCID 1049PyridineHCID 660393-Cyclopentylpropionyl chlorideHCID 150841165-Amino-6-nitro-1-indanone

Product 1

HCID 59745250N-(6-Nitro-1-oxo-indan-5-yl)-3-cyclopentyl-propionamideYield 83%

Reagents, catalysts & solvents 1

HCID 63651,1-DichloroethaneSolvent

Procedure

Pyridine (0.1 g, 1.3 mmol) was added to a suspension of 5-amino-6-nitro-indan-1-one (0.19 g, 1 mmol) in 15 ml of anhydrous dichloroethane followed by the addition of 3-cyclopentylpropionyl chloride (0.193 mg, 1.2 mmol) at room temperature under argon. The mixture was stirred at room temperature for 24 hours. The solvent was removed under reduced pressure and the residue was purified by column (hexane/EtOAc, 5:1) to give a yellow solid (0.26 g, 83%). 1H-NMR (DMSO-d6): δ 10.47 (s, 1H, NH, exchangeable with D2O), 8.06 (s, 1H), 7.87 (s, 1H), 3.15 (m, 2H), 2.69 (m, 2H), 2.38 (t, 2H, J=7.8Hz), 1.74 (m, 2H), 1.59-1.46 (m, 7H), 1.08 (m, 2H). MS: 317 (M+1).

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue was purified by column (hexane/EtOAc, 5:1)

Sources & evidence

ORD record
ord-5b2e91ef23994068ba4fe0e8211635db
Source dataset
uspto-grants-2012_12
Patent number
US08338487B2

Reaction notes

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