申请人:University of Florida
公开号:US05008257A1
公开(公告)日:1991-04-16
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 a 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-toxic 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.
本文涉及的化合物适用于特定部位/持续性给药到大脑的中枢作用药物物种,包括:(a)式[D-DHC](I)的化合物,其中[D]是中枢作用药物物种,[DHC]是一种还原的、可生物氧化的、穿过血脑屏障的脂质型二氢吡啶/吡啶盐氧化还原载体,但当[DHC]为##STR1##其中R是较低的烷基或苄基,[D]是含有单个NH.sub.2或OH官能团的药物物种,当存在单个OH官能团时,其为初级或次级OH官能团,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,那么[D]必须不是交感神经兴奋剂、类固醇性激素或长链脂肪醇;(b)式(I)化合物的非毒性药学上可接受的盐,其中[D]是中枢作用药物物种,[DHC]是一种还原的、可生物氧化的、穿过血脑屏障的脂质型二氢吡啶/吡啶盐氧化还原载体。同时还公开了相应的离子型吡啶盐类药物/载体实体[D-QC].sup.+ X.sup.-。