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

HRID 1060670Notes

Reaction equation

HRID 1060670 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-c437f1c6d21f47d39df60749f23c21c4
Source dataset
uspto-grants-2003_02
Patent number
US06525064B1

Reaction notes

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