中文摘要：

随着计算技术的发展和分子模拟软件的日趋成熟,虚拟筛选已经在药物发现过程中发挥着越来越重要的作用.在虚拟筛选过程中,所使用化合物库的质量对先导化合物发现的成功率起着至关重要的作用.本文通过对已知药物库、天然产物库、中药原植物化学成分库、筛选常用商业化合物库以及研究者所在实验室建立的化合物库的分析比较,从化合物库的分子多样性、化学空间和分子骨架等多个方面提取并对比每一种化合物库的特征,发现了已知药物库与中药原植物化学成分库的特征相似性,揭示了中药原植物化学成分库作为筛选库的类药性优势,并且深化了对几种筛选用化合物库特征的认识和理解.

英文摘要：

With the development of computer technology and software for molecular modeling,virtual screening plays an important role in drug discovery.In the flow of virtual screening,high quality compound libraries used are essential for success.In this paper,we analyzed two known drug libraries,a natural product library,compounds from plants used for traditional Chinese medicines （TCM）,two frequently used commercial libraries,and a compound library in home.Features of these libraries were extracted and compared for molecular diversity,chemical space,and molecular scaffolds.We found similarities between drugs and the compounds used for TCM,which indicates TCM could be useful for virtual screening.These results aid understand of the chemical characteristics used in virtual screening libraries.