Facilitated Transport of Two Model Steroids by Esters and Amides of Clofibric Acid
作者:Bozena B. Mlchniak、James M. Chapman、Kazimierz L. Seyda
DOI:10.1002/jps.2600820221
日期:1993.2
A series of novel dermal penetration enhancers, esters and amides of clofibric acid, was synthesized. The permeation parameters and skin retention of two steroids (hydrocortisone-21-acetate and betamethasone-17-valerate) in propylene glycol were studied with athymic nude mouse skin by in vitro diffusion cell techniques in the presence of the novel enhancer compounds. Isopropyl myristate, dimethyl lauramide
合成了一系列新型的皮肤渗透促进剂,氯纤维酸的酯和酰胺。在新型增强剂存在的条件下,通过体外扩散细胞技术,用无胸腺裸鼠皮肤研究了两种类固醇(氢化可的松21-乙酸盐和倍他米松17-戊酸)在丙二醇中的渗透参数和皮肤保留。肉豆蔻酸异丙酯,二甲基月桂酰胺和1-十二烷基十二烷基环庚烷-2-酮(月桂capram,Azone)用作对照增强剂。用氯纤维酸辛基酰胺观察到酯和酰胺系列的最令人满意的增强。共同给药可使24小时后醋酸氢化可的松的皮肤保留增加3.5倍,戊酸倍他米松的皮肤保留增加2.9倍。扩散细胞受体浓度分别增加51.6倍和10.3倍,在同一时间段。但是,在这种情况下,将增强剂化合物在每种类固醇之前1小时施用于皮肤。酰胺类似物比相同碳链长度的等效酯化合物更有效。最好的增强剂化合物(2c,3d,3e和3f)在体内对无胸腺小鼠皮肤无刺激性。