申请人:——
公开号:US05472946A1
公开(公告)日:1995-12-05
This invention relates to compounds and a method for their use in carrying physiologically active agents through body membranes such as skin and for retaining these agents in body tissues. More specifically, the invention relates to carboxylic acid derivatives and salts thereof, which compounds are useful in topically administering a physiologically active agent to a human or animal via a composition comprising the agent and an effective amount of a compound represented in one embodiment by the general formulae: ##STR1## wherein W represents oxygen, sulfur, or two hydrogen radicals; Z represents oxygen, sulfur, or --CH.sub.2 --; R represents alkyl optionally substituted with one to three double or triple bonds, --SR'", --OR'", --NHR'", --CH.sub.3, or COOR.sub.1, and wherein R.sub.1 represents hydrogen or lower alkyl; R'" represents alkyl, alkylthioalkyl, alkoxyalkyl, substituted aminoalkyl, optionally substituted with a phenyl, benzoyl or heterocyclic group; R' represents hydrogen, alkyl, alkoxy, acyloxy, alkylthio, hydroxy, --(CH.sub.2).sub.y COOR.sub.1 and with y being between zero and 3, inclusive; R"represents hydrogen or --(CH.sub.2).sub.y COOR.sub.1 such that when R" is hydrogen, then W is two hydrogen radicals and R' is not hydrogen; and when R' is hydrogen, then R" is not hydrogen; and m is between one and 5, while n is between 1 and 24, and x is zero or 1, inclusive. The invention further relates to the penetration-enhancing agents themselves and the method of making such penetration-enhancing agents.
本发明涉及化合物及其在贯穿身体膜,如皮肤,携带生理活性剂并在体内组织中保留这些剂量的方法。更具体地说,本发明涉及羧酸衍生物及其盐,这些化合物在通过包含该剂量和有效量的化合物的组成物经皮肤向人类或动物局部给药时非常有用,其中该化合物在一种实施例中由以下一般式表示:##STR1##其中W代表氧,硫或两个氢基团; Z代表氧,硫或--CH.sub.2--; R代表烷基,可选地取代一个到三个双键或三键,--SR'", --OR'", --NHR'", --CH.sub.3或COOR.sub.1,其中R.sub.1代表氢或较低的烷基; R'"代表烷基,烷基硫基烷基,烷氧基烷基,取代的氨基烷基,可选地取代苯基,苯甲酰基或杂环基; R'代表氢,烷基,烷氧基,酰氧基,烷硫基,羟基,--(CH.sub.2).sub.yCOOR.sub.1,其中y在0到3之间,包括0和3; R"代表氢或--(CH.sub.2).sub.yCOOR.sub.1,使得当R"为氢时,W为两个氢基团,R'不是氢; 当R'为氢时,R"不是氢; m在1到5之间,n在1到24之间,x为0或1,包括在内。本发明还涉及增强渗透剂本身以及制备这种增强渗透剂的方法。