Hydrochloric Acid → 2-Bromo-5-[(4-chloro-phenyl)-(1-methyl-6-oxo-piperidin-3-ylamino)-methyl]-1-isopropyl-1H-imidazole-4-carboxylic acid ethyl ester

HRID 2410113Notes

Reaction equation

HRID 2410113 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[N:7]=[C:8]([Br:23])[N:9]([CH:20]([CH3:22])[CH3:21])[C:10]=1[CH:11]([C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][CH:14]=1)O)=[O:5])[CH3:2].[NH2:24][CH:25]1[CH2:30][N:29]([CH3:31])[C:28](=[O:32])[CH2:27][CH2:26]1.Cl>CCOC(C)=O>[CH2:1]([O:3][C:4]([C:6]1[N:7]=[C:8]([Br:23])[N:9]([CH:20]([CH3:22])[CH3:21])[C:10]=1[CH:11]([C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][CH:14]=1)[NH:24][CH:25]1[CH2:26][CH2:27][C:28](=[O:32])[N:29]([CH3:31])[CH2:30]1)=[O:5])[CH3:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 510721765-Amino-1-methylpiperidin-2-oneHCID 86707749ethyl 2-bromo-5-((4-chlorophenyl)(hydroxy)methyl)-1-isopropyl-1H-imidazole-4-carboxylate2×

Product 1

HCID 867077672-Bromo-5-[(4-chloro-phenyl)-(1-methyl-6-oxo-piperidin-3-ylamino)-methyl]-1-isopropyl-1H-imidazole-4-carboxylic acid ethyl ester

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

The title compound was prepared in analogy to the procedure described for step E2 using 2-bromo-5-[(4-chlorophenyl)-hydroxy-methyl]-1-isopropyl-1H-imidazole-4-carboxylic acid ethyl ester (intermediate B) and 5-amino-1-methylpiperidin-2-one (ChemBridge, free base was made from the purchased HCl salt) as starting materials. The crude reaction mixture was diluted with EtOAc and washed with aqueous NaHCO3 solution and brine. tr: 1.07 min (LC-MS 2); ESI-MS: 511.1 [M+H]+ (LC-MS 2); 1H-NMR (DMSO-d6, 400 MHz) δ ppm 7.42 (m, 2H), 7.30 (m, 2H), 6.28 (NH, br, 1H), 4.85-5.00 (m, 1 H), 4.25 (quin, 2 H), 3.15-3.05 (m, 2H), 2.84-2.75 (m, 1H), 2.72 (d, 3H), 2.38-1.85 (m, 4H), 1.75-1.58 (m, 1), 1.45 (d, 3 H), 1.24 (t, 3 H), 0.83 (t, 3H).

Workup

  1. customThe crude reaction mixture
  2. washwashed with aqueous NaHCO3 solution and brine
  3. custom1.07 min (LC-MS 2)

Sources & evidence

ORD record
ord-f64b30b3576f498ea11f35cef7a3b6f6
Source dataset
uspto-grants-2014_08
Patent number
US08815926B2

Reaction notes

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