申请人:University of Florida
公开号:US04540564A1
公开(公告)日:1985-09-10
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-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.+ Y.sup.- are also disclosed.
这些适用于特定部位/持续向大脑释放中枢作用药物的主体化合物是:(a) 公式[D-DHC](I)的化合物,其中[D]是中枢作用药物,[DHC]是一种还原的、可生物氧化的、能穿透血脑屏障的脂溶性二氢吡啶.revreaction.吡啶盐氧化还原载体的形式,但当[DHC]是##STR1## 其中R是较低的烷基或苄基,[D]是含有单个NH.sub.2或OH官能团的药物种类,当存在单个OH官能团时,该OH官能团为初级或次级OH官能团,所述的药物种类直接通过所述的NH.sub.2或OH官能团与[DHC]的羰基功能连接,那么[D]必须不是交感神经刺激剂、甾体性激素或长链烷醇;以及(b) 公式(I)的化合物的无毒、药学上可接受的盐,其中[D]是中枢作用药物,[DHC]是一种还原的、可生物氧化的、能穿透血脑屏障的脂溶性二氢吡啶.revreaction.吡啶盐氧化还原载体的形式。还披露了相应的离子吡啶盐型药物/载体实体[D-QC].sup.+ Y.sup.-。