This paper studies the dicyclohexylcarbodiimide activated coupling reaction through ester-type covalent bonds of an oxazolone derived from N-(m-nitrobenzoyl)-L-asparagic acid, ring opened with 2-benzylbenzimidazole, on gellan. Based on a centered, rotatory, composed, second order experimental design, the regression equation describing the dependence of the amount of drug chemically bonded to the support on the reaction parameters is obtained. The efficiency of the coupling reaction over the variation domain established is maximum when the parameters’ highest values are used. The kinetics of the drug’s release from the support are studied under alkaline hydrolysis conditions.
本文研究了二环己基碳二
亚胺通过由N-(间
硝基苯甲酰基)-
L-天冬氨酸衍生的
恶唑酮(用2-苄基
苯并咪唑开环)在结冷胶上的酯型共价键激活的偶联反应。基于中心、旋转、组合、二阶实验设计,获得了描述
化学键合到载体上的药物量对反应参数的依赖性的回归方程。当使用参数的最高值时,所建立的变化域上的耦合反应的效率是最大的。在碱性
水解条件下研究药物从载体释放的动力学。