Effects of Vehicles and Prodrug Properties and Their Interactions on the Delivery of 6-Mercaptopurine through Skin: Bisacyloxymethyl-6-mercaptopurine Prodrugs
作者:Robert P. Waranis、Kenneth B. Sloan
DOI:10.1002/jps.2600760803
日期:1987.8
large number of prodrug: vehicle combinations. Generally the best prodrugs of the series in terms of delivering 6-MP, regardless of the vehicle, were the first two members--the bisacetyl- and the bispropionyloxymethyl-6-mercaptopurine prodrugs. This result has been attributed mainly to the increased water solubility of these two prodrugs compared with that of 6-MP and the other prodrugs, since all of
合成并表征了一系列S6,9-双酰氧基甲基-6-巯基嘌呤(6,9-bis-6-MP)前药衍生物。测定了衍生物在溶剂(车辆)中的溶解度,该溶剂表现出从水到油酸的多种极性。还确定了前药从载剂中释放6-巯基嘌呤(6-MP)的能力,并且针对大量前药:载剂组合计算了实验通量和渗透系数(Kp)。通常,就交付6-MP而言,该系列中最好的前药,无论使用哪种媒介,都是前两个成员-双乙酰基和双丙酰氧基甲基-6-巯基嘌呤前药。该结果主要归因于与6-MP和其他前药相比,这两种前药的水溶性增加,因为所有前药的脂溶性都比6-MP高。对于三种载体(肉豆蔻酸异丙酯,丙二醇和水),前药从这些载体中输送6-MP的对数实验Kp与前药的理论溶解度参数之间具有良好的相关性。在缓冲液和含有从真皮中浸出的酶的缓冲液中测定了双乙酰基-(2),双丙酰基-(3)和双丁酰氧基甲基-6-巯基嘌呤(4)衍生物的稳定性。前药2在含有酶的缓冲液中比3或