| 摘要 |
A pharmacologically active compound has the general formula <IMAGE> in which R is a hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms; R1 and R2, which can be different, represent a hydrogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an arylalkyl group, or an arylalkoxy group, or can jointly represent an oxygen atom or a CHCOOR1' group where R1' is a hydrogen atom or an alkyl group; and R3 represents a hydrogen or halogen atom or an alkyl, NH2, NO2, NHCO-alkyl, NHCO-aryl, NHCONH-alkyl or NHCOHN-aryl group. These compounds act on the central nervous system and have an anti-convulsant sedative activity.
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