New percutaneous absorption enhancers, compositions containing same and method of use
申请人:Macrochem Corporation
公开号:EP0268460A1
公开(公告)日:1988-05-25
Novel 1,3-dioxacycloalkanes are provided along with new 1,3-dioxacycloalkane compositions which are useful in enhancing the absorption of therapeutic agents through the skin of humans and animals. The method for enhancing skin penetration of therapeutic agents using 1,3-dioxacycloalkanes is also described.
The preferred compounds are 1,3-dioxacycloalkanes (1,3-dioxacycloalkanes) and 1,3-dioxanes (1,3-dioxacyclohexanes). The preferred compounds have the formula:
wherein R, R₀, R₁, R₂, R₃, R₄, R₅, and R₆ are each independently selected from hydrogen and C₁ and C₁₈ aliphatic groups, preferably alkyl, alkenyl, halo, hydroxy, carboxy, carboxamide, and carboalkoxy substituted forms thereof, with at least one of said R's an alkyl or alkenyl group of C₄ to C₁₈ and n=0 or 1; the total number of carbon atoms in all of said R groups being no more than 40, and preferably less than 20 and not more then 1 thereof containing 18 or more carbon atoms.
本研究提供了新型 1,3-二氧杂环烷烃以及新型 1,3-二氧杂环烷烃组合物,这些组合物有助于增强人和动物皮肤对治疗剂的吸收。此外,还介绍了使用 1,3-二氧杂环烷烃增强治疗剂皮肤渗透的方法。
优选的化合物是 1,3-二氧杂环烷烃(1,3-dioxacycloalkanes)和 1,3-二氧杂环烷烃(1,3-dioxacyclohexanes)。优选化合物的化学式如下
其中 R、R₀、R₁、R₂、R₃、R₄、R₅ 和 R₆ 各自独立地选自氢、C₁ 和 C₁₈ 脂肪族基团,优选烷基、烯基、卤代、羟基、羧基和烷基、卤代、羟基、羧基、羧酰胺和羧烷氧基的取代形式,其中至少一个 R 是 C₄ 至 C₁₈ 的烷基或烯基,且 n=0 或 1;所有所述 R 基团中的碳原子总数不超过 40 个,最好少于 20 个,其中不超过 1 个含有 18 个或更多碳原子。