申请人:Research Corporation Technologies, Inc.
公开号:US05846955A1
公开(公告)日:1998-12-08
This invention relates to a method for improving the efficiency of a drug containing a free carboxy group, the improvement comprising esterifying said carboxy group to the hydroxy group of the glycerol portion of a glycerolphospholipid ester having the formula: ##STR1## or pharmaceutically acceptable salts thereof wherein one of R.sub.1 and R.sub.2 is hydrogen and the other is hydrogen, a hydrocarbyl fatty acid acyl group having 4-26 carbon atoms or a hydrocarbyl heteroatom fatty acid acyl group having 3-25 carbon atoms, or ##STR2## and R is a naturally occurring polar head group characteristic of a glycerophospholipid isolated from endogenous sources; R.sub.3 is hydrogen or lower alkyl and R.sub.4 is hydrogen, hydrocarbyl containing from 1-18 carbon atoms in a principal chain and up to a total of 23 carbon atoms, said principal chain may contain 1-5 double bonds or 1-2 triple bonds; phenyl which may be unsubstituted or substituted with lower alkyl; naphthyl which may be unsubstituted or substituted with lower alkoxy; or R.sub.5 ZR.sub.6 ; Z is O or S; R.sub.5 and R.sub.6 are independently a hydrocarbyl chain containing from 1-18 carbon atoms in the principal chain and up to a total of 23 carbon atoms, said chain may be completely saturated or may contain 1-5 double bonds or 1-2 triple bonds; and the sum of the carbon atoms in R.sub.3 and R.sub.4 does not exceed 23. This invention also relates to the compounds prepared therefrom as well as the use of the compounds to treat diseases in animals.
本发明涉及一种改善含有自由羧基药物效率的方法,其中改善包括将该羧基酯化到具有以下式子的甘油磷脂酯的甘油部分的羟基上:##STR1##或其药学上可接受的盐,其中R.sub.1和R.sub.2中的一个是氢,另一个是氢,具有4-26个碳原子的烃基脂肪酸酰基或3-25个碳原子的烃基杂原子脂肪酸酰基,或##STR2##R是从内源性来源中分离的具有甘油磷脂特征的天然极性头基;R.sub.3是氢或低碳基烷基,R.sub.4是氢,含有1-18个碳原子的主链中和最多23个碳原子的烃基,该主链可以包含1-5个双键或1-2个三键;苯基可以是未取代或取代有低碳基烷基;萘基可以是未取代或取代有低烷氧基;或R.sub.5 ZR.sub.6;Z是O或S;R.sub.5和R.sub.6分别是含有1-18个碳原子的主链中和最多23个碳原子的烃基链,该链可以完全饱和或可以包含1-5个双键或1-2个三键;R.sub.3和R.sub.4中的碳原子总和不超过23。本发明还涉及从中制备的化合物以及使用该化合物治疗动物疾病的用途。