Liguzinediol缬氨酸酯前药的设计、合成及成药性评价  

Design,Synthesis and Druggability Evaluation of Liguzinediol Valine Ester Prodrug as Promissing Inotropic Agent

作　　者：李智[1] 沈敏哲 李伟[1] 文红梅[1] 刘健[1] 朱浩浩[1] 钱程博 蔡建国[1] LI Zhi SHEN Min-zhe LI Wei WEN Hong-mei LIU Jian ZHU Hao-hao QIAN Cheng-bo CAI Jian-guo(School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China)

机构地区：[1]南京中医药大学药学院,江苏南京210023

出　　处：《南京中医药大学学报》2017年第4期412-416,共5页Journal of Nanjing University of Traditional Chinese Medicine

基　　金：国家自然科学基金(81573304);高等学校博士学科点专项科研基金(20123237110010);江苏省高校优势学科建设工程资助项目

摘　　要：目的设计、合成liguzinediol缬氨酸酯前药,结合化学稳定性、理化性质、体外生物转化和体内药代动力学研究,为进一步liguzinediol氨基酸酯类前药研究奠定基础。方法以liguzinediol和N-叔丁氧羰基(Boc)-L-缬氨酸为原料,经4-二甲氨基吡啶(DMAP)催化、N,N'-二环己基碳二亚胺(DCC)缩合成酯,15%TFA脱Boc保护得liguzinediol缬氨酸酯前药,目标化合物结构经LC-HRMS、1 H-NMR和13 C-NMR确证。采用高效液相色谱法(HPLC)测定目标化合物的化学稳定性、溶解度、容量因子和脂水分配系数,以及体外80%人体血浆中酯酶水解的释放特性和体内药代动力学研究。结果 Liguzinediol缬氨酸酯前药保留了原药的溶解度特性,体外80%人体血浆酶解liguzinediol释放速率良好,体内作用时间明显延长;但脂溶性相对较差。结论 Liguzinediol缬氨酸酯前药具有一定的成药性,且明显延长了原药liguzinediol的体内作用时间,为进一步liguzinediol氨基酸酯前药研究提供了思路。OBJECTIVE One liguzinediol valine ester prodrug was synthesized and evaluated for the physicochemical proper- ties and bioconversion, which laid the foundation for further study of liguzinediol amino acid ester prodrugs. METHODS Ligu- zinediol valine ester prodrug was prepared by a two-step reaction of condensation and deprotection from liguzinediol, and its structure was verified by LC-HRMS, 1H-NMRand13 C-NMR. The chemical stability, capacity factor, solubility, lipophilicity, metabolic stability in human plasma and pharmacokinetics study in vivo of valine ester prodrug were tested by HPLC. RE- SULTS Liguzinediol valine ester prodrug retained great solubility and showed good bioconversion in human plasma. The half- time of liguzinediol was extended obviously. However, the lipophilicity was relatively poor. CONCLUSION Liguzinediol valine ester prodrug was provided with the feature to form the drug, and obvious extended the half-time of liguzinediol. Mean- while, it indicated that prodrug strategy was feasible, which provided the way of experiment for liguzinediol prodrug research.

关 键 词：LIGUZINEDIOL 前药 理化性质 药代动力学 

分 类 号：R284.3[医药卫生—中药学]