반응 #595314

반응 방정식

4-[4,5-dihydro-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-3-isoxazolyl]-N-[2-[S-methyl-N-(2,2,2-trifluoroacetyl)sulfinimidoyl]ethyl]-1-naphthalene-carboxamide

title compound

4-[4,5-dihydro-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-3-isoxazolyl]-N-[2-[S-methyl-N-(2,2,2-trifluoroacetyl)sulfinimidoyl]ethyl]-1-naphthalenecarboxamide

potassium carbonate

→

title compound

4-[4,5-dihydro-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-3-isoxazolyl]-N-[2-(S-methylsulfinimidoyl)ethyl]-1-naphthalenecarboxamide

용매

methanol

반응 조건

후처리

1. 1
   여과the reaction mixture was filtered through a short pad of silica gel
2. 2
   세척rinsed with ethyl acetate
3. 3
   농축After concentration
4. 4
   기타the residue was purified by column chromatography on silica gel

실험 절차

To a stirred solution of 4-[4,5-dihydro-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-3-isoxazolyl]-N-[2-[S-methyl-N-(2,2,2-trifluoroacetyl)sulfinimidoyl]ethyl]-1-naphthalene-carboxamide (70 mg) (i.e. the title compound of Step A) in methanol (2 mL) was added potassium carbonate (300 mg) at room temperature. After stirring overnight at room temperature, the reaction mixture was filtered through a short pad of silica gel and rinsed with ethyl acetate. After concentration, the residue was purified by column chromatography on silica gel using dichloromethane/methanol (98:2 to 92:8) as eluent to afford the title compound, a compound of the present invention, as a semisolid (9 mg, 15% yield).

출처