反应详情

To a solution of 3-[(Z)-{[(2-amino-1,3-thiazol-4-yl)methoxy]imino}(phenyl)methyl]-2-methyl-1,2,4-oxadiazol-5(2H)-one (300 mg, 0.905 mmol, 1 eq.) and pyridine (0.110 ml, 1.36 mmol, 1.5 eq) in dry dichloromethane (4.0 ml) at room temperature was added 4-chlorophenyl acetyl chloride (0.20 mL, 1.36 mmol, 1.5 eq) and stirring was allowed for 2 h. The reaction was quenched by addition of 2 ml of 1N NaOH. The layers were separated and the organic layer was dried over MgSO4. After concentration, the residue was purified by chromatography on silica gel to give 2-(4-chlorophenyl)-N-{4-[({[(Z)-(2-methyl-5-oxo-2,5-dihydro-1,2,4-oxadiazol-3-yl)(phenyl)methylene]amino}oxy)methyl]-1,3-thiazol-2-yl}acetamide (365 mg, 79% yield).

1. customThe reaction was quenched by addition of 2 ml of 1N NaOH
2. customThe layers were separated
3. dry with materialthe organic layer was dried over MgSO4
4. concentrationAfter concentration
5. customthe residue was purified by chromatography on silica gel