transdermal permeation enhancer. In this study, ketone, amide, and alkane analogs of T12 have been synthesized and evaluated for their permeation-enhancing activity using porcine skin and theophylline as a model drug. Replacement of ester by methylene and ketone, respectively, led to a significant decrease of activity. Amide analogs displayed lower activity in 60% propylene glycol and were comparable to
Transkarbam 12(5-(
十二烷基氧羰基)戊基
铵-5-(
十二烷基氧羰基)戊基
氨基甲酸酯,T12)是一种高活性的透皮渗透
促进剂。在这项研究中,已经合成了T12的酮,酰胺和
烷烃类似物,并以猪皮肤和茶碱为模型药物评估了它们的渗透增强活性。分别用亚甲基和酮代替酯导致活性显着降低。酰胺类似物在60%
丙二醇中的活性较低,与
肉豆蔻酸异丙酯中的T12相当。认为酯和
氨基甲酸铵基团之间的分子内氢键对于T12的渗透增强活性很重要。