| 摘要 |
There are prepared compounds of the formula <IMAGE> (I) where >A-B- has either the structure >C(OH)-CH2- or the structure >C=CH, Alk is a straight or branched chain C1-C5- alkylene group and -NHY is <IMAGE> where R' is hydrogen, phenyl, phenyl substituted once or twice by C1-C4-alkyl groups, a C1-C4-alkoxy group or by halogen atoms, a C1-C6-alkyl group, a C1-C4-hydroxyalkyl group or a phenalkyl group whose alkyl portion consists of 1-4 carbon atoms or such a phenalkyl group containing 1 to 3 C1-C4-alkoxy group substituents. The compounds are effective in improving peripheral and cerebral circulation. There are also produced intermediate compounds of formula (II) where NHY is replaced by chlorine, bromine or iodine.
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