QSAR Studies on Andrographolide Derivatives as α-Glucosidase Inhibitors

International Journal of Molecular Sciences

Jun Xu²  Sichao Huang²  Haibin Luo¹  Guoji Li²  Jiaolin Bao²  Shaohui Cai² 

[1] School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510275, China; E-Mail:;Pharmacy College, Jinan University, Guangzhou, 510632, China; E-Mails:

关键词: andrographolide;    QSAR;    α-glucosidase;    HQSAR;   

DOI  :  10.3390/ijms11030880

来源: mdpi

【 摘 要 】

Andrographolide derivatives were shown to inhibit α-glucosidase. To investigate the relationship between activities and structures of andrographolide derivatives, a training set was chosen from 25 andrographolide derivatives by the principal component analysis (PCA) method, and a quantitative structure-activity relationship (QSAR) was established by 2D and 3D QSAR methods. The cross-validation r² (0.731) and standard error (0.225) illustrated that the 2D-QSAR model was able to identify the important molecular fragments and the cross-validation r² (0.794) and standard error (0.127) demonstrated that the 3D-QSAR model was capable of exploring the spatial distribution of important fragments. The obtained results suggested that proposed combination of 2D and 3D QSAR models could be useful in predicting the α-glucosidase inhibiting activity of andrographolide derivatives.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.