<正>A synthesis of methyl 2-hydroxy-4-oxo-4-(substituted phenyl)butanoates has been accomplished using Friedel-Crafts acylation of substituted benzenes with 2-a
<正>A series of novel 1,5-benzothiazepine derivatives containing COOC_2H_5/COONa groups at the C(2)-position were synthesized and evaluated for their antifungal
<正>A novel method for the determination of five carbamate pesticides(metolcarb,carbofuran,carbaryl,isoprocard and diethofencard)in water samples was developed