| 摘要 |
The subject compounds, which are adapted for the site-specific/sustained delivery of centrally acting drug species to the brain, are compounds of the formula <IMAGE> (I) and the non-toxic pharmaceutically acceptable salts thereof, wherein D is the residue of a centrally acting primary, secondary or tertiary amine and <IMAGE> is an unsubstituted or substituted dihydropyridyl, dihydroquinolyl or dihydroisoquinolyl radical. The corresponding ionic pyridinium, quinolinium and isoquinolinium salts <IMAGE> wherein X-is the anion of a non-toxic pharmaceutically acceptable acid, are also disclosed.
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