Triethylamine → Tert-butyl 4-({3-[(ethoxyacetyl)amino]-5,6-dimethyl-2-phenoxypyridin-4-yl)amino)butylcarbamate

HRID 2085291Notes

Reaction equation

HRID 2085291 reaction equation
C(N(CC)CC)C.[NH2:8][C:9]1[C:10]([O:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)=[N:11][C:12]([CH3:29])=[C:13]([CH3:28])[C:14]=1[NH:15][CH2:16][CH2:17][CH2:18][CH2:19][NH:20][C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24].[CH2:37]([O:39][CH2:40][C:41](Cl)=[O:42])[CH3:38]>ClCCl>[CH2:37]([O:39][CH2:40][C:41]([NH:8][C:9]1[C:10]([O:30][C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=2)=[N:11][C:12]([CH3:29])=[C:13]([CH3:28])[C:14]=1[NH:15][CH2:16][CH2:17][CH2:18][CH2:19][NH:20][C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:42])[CH3:38]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 84189Ethoxyacetyl chlorideHCID 12109126Tert-butyl 4-[(3-amino-5,6-dimethyl-2-phenoxypyridin-4-yl)amino]butylcarbamate

Product 1

HCID 12109142Tert-butyl 4-({3-[(ethoxyacetyl)amino]-5,6-dimethyl-2-phenoxypyridin-4-yl)amino)butylcarbamate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Triethylamine (3.3 mL, 23.7 mmol) was added to a chilled (0° C.) mixture of tert-butyl 4-[(3-amino-5,6-dimethyl-2-phenoxypyridin-4-yl)amino]butylcarbamate (8.60 g, 21.5 mmol) and anhydrous dichloromethane (200 mL). Ethoxyacetyl chloride (2.76 g, 22.5 mmol) was added. After one hour the reaction mixture was allowed to warm to ambient temperature and stirred for 2 hours. The reaction mixture was concentrated under reduced pressure to provide tert-butyl 4-({3-[(ethoxyacetyl)amino]-5,6-dimethyl-2-phenoxypyridin-4-yl}amino)butylcarbamate as a brown oil. The oil was combined with pyridine (130 mL) and heated at reflux overnight. The reaction mixture was concentrated under reduced pressure to provide a brown oil. The oil was dissolved in dichloromethane and was washed with water. The organic layer was dried over magnesium sulfate and then concentrated under reduced pressure. The residue was dissolved in diethyl ether and then concentrated under reduced pressure to provide 8.21 g of tert-butyl 4-[2-(ethoxymethyl)-6,7-dimethyl-4-phenoxy-1H-imidazo[4,5-c]pyridin-1-yl]butylcarbamate.

Workup

  1. temperaturea chilled
  2. concentrationThe reaction mixture was concentrated under reduced pressure

Sources & evidence

ORD record
ord-58e7ee361820451581f73938253cde43
Source dataset
uspto-grants-2004_04
Patent number
US06720334B2

Reaction notes

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