title: A new rapid and effective chemistry space filter in recognizing a druglike database.
abstract: To develop a new chemistry space filter with high efficiency and accuracy, an analysis on distributions of as many as 50 structural and physicochemical properties was carried out on both druglike and nondruglike databases, viz. MACCS-II Drug Data Report (MDDR), Comprehensive Medicinal Chemistry (CMC), and Available Chemicals Directory (ACD). Based on the analysis results, a chemistry space filter was developed that can effectively discriminate a druglike database from a nondruglike database. The filter is composed of two descriptors: one is a molecular saturation related descriptor, and the other is associated with the proportion of heteroatoms in a molecule. Both are molecular size independent. Therefore, the profiles of a druglike database could be characterized as proper molecular saturation and proper percentage of heteroatoms, revealing direct indices for designing and optimizing combinatorial libraries. The application of the new filter on the Chinese Natural Product Database (CNPD) suggested that CNPD is, as expected, a potential druglike database, testifying that the new filter is reliable. Therefore, this newly developed chemistry space filter should be a potent tool for identifying druglike molecules, thus, it would have potential applications in the research of combinatorial library design and virtual high throughput screening using computational approaches for drug discovery.
authors.affiliation: Shanghai Institute of Materia Medica, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China.
authors.forename: Suxin
authors.initials: S
authors.lastname: Zheng
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Luo
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Weiliang
authors.initials: W
authors.lastname: Zhu
authors.forename: Jianhua
authors.initials: J
authors.lastname: Shen
authors.forename: Kaixian
authors.initials: K
authors.lastname: Chen
authors.forename: Hualiang
authors.initials: H
authors.lastname: Jiang
mesh_terms: D020650:Combinatorial Chemistry Techniques; D003198:Computer Simulation; D019992:Databases as Topic; D015195:Drug Design; D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D013997:Time Factors
chemical_list: D006841:Hydrocarbons, Aromatic