3D-QSAR studies on natural acetylcholinesterase inhibitors of Sarcococca saligna by comparative molecular field analysis (CoMFA)

被引:33
作者
ul-Haq, Z [1 ]
Wellenzohn, B
Tonmunphean, S
Khalid, A
Choudhary, MI
Rode, BM
机构
[1] Univ Innsbruck, Inst Gen Inorgan & Theoret Chem, Dept Theoret Chem, Innrain 52A, A-6020 Innsbruck, Austria
[2] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
[3] Univ Karachi, HEJ Res Inst Chem, Karachi 75270, Pakistan
关键词
D O I
10.1016/j.bmcl.2003.09.034
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
We have derived a comprehensive structure-activity relationship (SAR) picture for a new series of natural acetylcholinesterase inhibitors isolated from Sarcococca saligna. A set of 32 previously isolated and tested pregnane-type steroidal alkaloids inhibitors were investigated with respect to their IC50 values (pIC(50)) against the AChE enzyme in order to derive CoMFA models using atom-based alignment. A highly significant CoMFA model was obtained with r(2) value of 0.974. The q(2) (cross validation r(2)) value also confirms the statistical significance of our model. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4375 / 4380
页数:6
相关论文
共 20 条
[1]  
Atta-ur-Rahman, 2002, HELV CHIM ACTA, V85, P678, DOI 10.1002/1522-2675(200202)85:2&lt
[2]  
678::AID-HLCA678&gt
[3]  
3.0.CO
[4]  
2-2
[5]   New steroidal alkaloids from Sarcococca saligna [J].
Atta-Ur-Rahman ;
Feroz, F ;
ul-Haq, Z ;
Nawaz, SA ;
Khan, MR ;
Choudhary, MI .
NATURAL PRODUCT RESEARCH, 2003, 17 (04) :235-241
[6]   Automated docking of 82 N-benzylpiperidine derivatives to mouse acetylcholinesterase and comparative molecular field analysis with 'natural' alignment [J].
Bernard, P ;
Kireev, DB ;
Chrétien, JR ;
Fortier, PL ;
Coppet, L .
JOURNAL OF COMPUTER-AIDED MOLECULAR DESIGN, 1999, 13 (04) :355-371
[7]   Structure-based alignment and comparative molecular field analysis of acetylcholinesterase inhibitors [J].
Cho, SJ ;
Garsia, MLS ;
Bier, J ;
Tropsha, A .
JOURNAL OF MEDICINAL CHEMISTRY, 1996, 39 (26) :5064-5071
[8]   VALIDATION OF THE GENERAL-PURPOSE TRIPOS 5.2 FORCE-FIELD [J].
CLARK, M ;
CRAMER, RD ;
VANOPDENBOSCH, N .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 1989, 10 (08) :982-1012
[9]   THE DEVELOPMENT AND USE OF QUANTUM-MECHANICAL MOLECULAR-MODELS .76. AM1 - A NEW GENERAL-PURPOSE QUANTUM-MECHANICAL MOLECULAR-MODEL [J].
DEWAR, MJS ;
ZOEBISCH, EG ;
HEALY, EF ;
STEWART, JJP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (13) :3902-3909
[10]   Aging and the brain: A new frontier [J].
Drachman, DA .
ANNALS OF NEUROLOGY, 1997, 42 (06) :819-828