申请人:University of Florida
公开号:US04880921A1
公开(公告)日:1989-11-14
The subject compounds, which are adapted for the site-specific/sustained delivery of centrally acting drug species to the brain, are: (a) compounds of the formula [D--DHC] (I) wherein [D] is a centrally acting drug species, and [DHC] is the reduced, biooxidizable, blood-brain barrier penetrating lipoidal form of a dihydropyridine .revreaction. pyridinium salt redox carrier, with the proviso that when [DHC] is ##STR1## wherein R is lower alkyl or benzyl and [D] is a drug species containing a single NH.sub.2 or OH functional group, the single OH group when present being a primary or secondary OH group, said drug species being linked directly through said NH.sub.2 or OH functional group to the carbonyl function of [DHC], then [D] must be other than a sympathetic stimulant, steroid sex hormone or long chain alkanol; and (b) non-boxic pharmaceutically acceptable salts of compounds of formula (I) wherein [D] is a centrally acting drug species and [DHC] is the reduced, biooxidizable, blood-brain barrier penetrating lipoidal form of a dihydropyridine .revreaction. pyridinium salt redox carrier. The corresponding ionic pyridinium salt type drug/carrier entities [D--QC].sup.+ X.sup.- are also disclosed.
这些化合物适用于特定部位/持续性向脑部递送中枢作用药物物种,包括:(a) 公式[D-DHC] (I) 的化合物,其中[D]是中枢作用药物物种,[DHC]是二氢吡啶的还原、可生物氧化、穿越血脑屏障的脂质形式。其中,当[DHC]为##STR1##其中R为低碳基或苄基,[D]为含有单个NH.sub.2或OH官能团的药物物种,当存在单个OH团时,该团为一次级或二次级OH团,该药物物种直接通过NH.sub.2或OH官能团与[DHC]的羰基功能相连。则[D]不得是交感神经兴奋剂、类固醇性激素或长链脂肪醇;(b) 公式(I)的化合物的非毒性药用可接受盐,其中[D]是中枢作用药物物种,[DHC]是二氢吡啶的还原、可生物氧化、穿越血脑屏障的脂质形式。还公开了相应的离子吡啶盐型药物/载体实体[D-QC]。+ X-。