| 摘要 |
Compounds of general formula (I), in which r is 1 or 2, R1 is selected independently from: unsubstituted, mono- or di-substituted phenyl groups, unsubstituted, mono- or di-substituted phenylamino groups, the 2(beta)-naphthyl group, and heterocyclic, monocyclic or dicyclic groups; R2 is selected independently from: heterocyclic spiro groups, aminoalkyladamantyl groups, alkylamino groups, C4-C10 cycloalkylamino groups , and dicyclic amino groups (condensed); R3 is H, CH3 or C2H5; A is a bond or a linear or branched alkylene group comprising from 1 t o 4 carbon atoms; W is a tertiary amino group or a heterocyclic group.
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