反応 #595307

反応方程式

N—[[4-[5-(3,5-dichlorophenyl)-4,5-dihydro-5-(trifluoromethyl)-3-isoxazolyl]-1-naphthalenyl]carbonyl]glycine

title product

N—[[4-[5-(3,5-dichlorophenyl)-4,5-dihydro-5-(trifluoromethyl)-3-isoxazolyl]-1-naphthalenyl]carbonyl]glycine

trimethylacetyl chloride

2-methoxyethylamine

triethylamine

→

title compound

4-[5-(3,5-dichlorophenyl)-4,5-dihydro-5-(trifluoromethyl)-3-isoxazolyl]-N-[2-[(2-methoxyethyl)amino]-2-oxoethyl]-1-naphthalenecarboxamide

溶媒

dichloromethane

pyridine

反応条件

後処理

1. 1
   workup.STIRRINGThe reaction mixture was stirred at room temperature overnight
2. 2
   その他quenched with water
3. 3
   抽出extracted with dichloromethane
4. 4
   洗浄washed with brine
5. 5
   乾燥dried with anhydrous sodium sulfate
6. 6
   濃縮concentrated
7. 7
   その他The residue was purified by column chromatography on silica gel

実験手順

To a stirred solution of N—[[4-[5-(3,5-dichlorophenyl)-4,5-dihydro-5-(trifluoromethyl)-3-isoxazolyl]-1-naphthalenyl]carbonyl]glycine (i.e. the title product of Step B) (100 mg) and pyridine (0.019 mL) in dichloromethane (3 mL) was added trimethylacetyl chloride (0.029 mL). The reaction mixture was stirred at room temperature for 2 h, and then 2-methoxyethylamine (0.11 mL) and triethylamine (0.68 mL, 5.0 mmol) were added. The reaction mixture was stirred at room temperature overnight, quenched with water, extracted with dichloromethane, washed with brine, dried with anhydrous sodium sulfate and concentrated. The residue was purified by column chromatography on silica gel using hexanes/ethyl acetate (3:2 to 1:4) as eluent to afford the title compound, a compound of the present invention, as a white solid (71 mg, 0.13 mmol, 65% yield).

出典