[EN] A heterocyclic compound or a salt thereof represented by the formula (1): where R2 represents a hydrogen atom or a lower alkyl group; A represents a lower alkylene group or lower alkenylene group; and R1 represents an aromatic group or a heterocyclic group. The compound of the present invention has a wide treatment spectrum for mental disorders including central nervous system disorders, no side effects and high safety. [FR] L'invention concerne un composé hétérocycllique ou un sel de ce dernier représenté par la formule (1), dans laquelle R2 représente un atome d'hydrogène ou un groupe alkyle inférieur ; A représente un groupe alkylène inférieur ou un groupe alcénylène inférieur ; et R1 représente un groupe aromatique ou un groupe hétérocyclique. Le composé de la présente invention présente un large spectre de traitement pour les troubles mentaux, y compris les troubles du système nerveux central, aucun effet secondaire et une innocuité élevée.
Syntheses and antiinflammatory activity of malonamic acid, malonamate and malonamide derivatives of some heterocyclic compounds.
Malonamate, malonic acid and malonamide derivatives of heterocyclic compounds were synthesized as part of a search for new biologically active compounds, e. g., those having antiinflammatory activity. Malonamates (1-17) were prepared by the reaction of amines containing heterocycles with malonic acid monoethyl ester. Hydrolysis of the malonamates gave the malonamic acids (18-24) in good yields. Malonamides (25-43) were synthesized by condensing amines with N-substituted malonamic acids. The antiinflammatory activity of these compounds was examined against carrageenin-induced rat paw edema. N-[2-(6-Methoxy) benzothiazolyl] malonamic acid (23) and its ethyl ester (7) showed significant activity.