Compounds of formula (I), wherein Z=cyclopentyl. cyclopropylmethyl, —CH3; R′═—CH3, CHF2, X=formula (II) (III) (IV) (V) Y=—CO; —C═O(CH2), —CH(OH)—CH2, —CH2—C═O, —CH2—CH2—C═O; —CH2—CH(OH)—CH2, —CH2—CH(OCOR1)—CH2 NR2═ —N(CH2—CH2OH)2, formula (VI) (VII) (VIII) (IX) (X) (XI) R1=optionally substituted C1-C8 alkyl, optionally substituted aryl; optionally substituted aralkyl, preferably C1-C3 alkyl, more preferably CH3; and enantiomers, diastereoisomers and pharmaceutically acceptable salts thereof; these compounds have a PDE4D inhibiting activity and can be used as a medicament for treating dementia, in particular Alzheimer disease, and for improving memory.
式 (I) 的化合物,其中 Z= 环戊基。
环丙基甲基,-
CH3;R′═- ,
CHF2,X=式(II) (III) (IV) (V) Y=-CO;-C═O(
CH2),-CH(OH)- ,- -C═O,- - -C═O;- -CH(OH)- ,- -CH(OCOR1)- NR2═ -N( - OH)2,式(VI) (VII) (VIII) (IX) (X) (XI) R1=任选取代的 C1-C8 烷基,任选取代的芳基;任选取代的芳烷基,优选 C1-C3 烷基,更优选 ;及其对映体、非对映异构体和药学上可接受的盐;这些化合物具有 PDE4D 抑制活性,可用作治疗痴呆症,特别是阿尔茨海默病和改善记忆的药物。