ionic-liquid-supported tin reagents were synthesized and used in Stillecross-couplingreactions. High yields of biaryls were obtained under low-temperature, solvent-free, ligand-free conditions, with simple purification techniques. Moreover, the tin compound could be recycled up to five times without significant loss of reactivity. An expanded catalytic cycle for the Stille cross coupling reaction is proposed in
(EN) Imidazole derivatives of formula: [DPIM]-S(O)p-W-Y, wherein [DPIM] is of formula (I), wherein R and R1 each represents hydrogen, halogen, alkyl or alkoxy, p is 0, 1 or 2, W represents alkylene, Y represents an optionally substituted 5- or 6-membered unsaturated ring containing 1 to 4 nitrogen atoms, and pharmaceutically acceptable acid addition salts thereof, are inhibitors of acyl coenzyme-A:cholesterol-O-acyle transferase and of the binding of thromboxane TxA2 to its receptors and are useful in therapy.(FR) On décrit des dérivés de formule [DPIM]-S(O)p-W-Y, où [DPIM] a la formule (I), dans laquelle R et R1 signifient chacun hydrogène, halogène, alkyle ou alkoxy, p est 0, 1 ou 2, W signifie alkylène, Y signifie un anneau insaturé à 5 ou 6 éléments, le cas échéant substitué, contenant de 1 à 4 atomes d'azote, et leurs sels d'addition acides pharmaceutiquement acceptables. Lesdits dérivés sont des inhibiteurs d'acyle coenzyme-A: cholestérol-O-acyle transférase et de la liaison de thromboxane TxA2 à ses récepteurs. Ils sont utiles dans la thérapie.
The present invention provides a novel benzamide derivative or a pharmaceutically acceptable salt thereof, a method for preparing the same, and a 5-HT
4
receptor agonist containing the same as an active ingredient. Benzamide derivatives of the present invention have a superior affinity for 5-HT
4
receptors, a capability to reduce a gastric emptying time and a low toxicity, and consequently are therapeutically effective for the treatment of a variety of diseases associated with
5
-HT
4
receptors.