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Towards predictive inhibitor design for the EGFR autophosphorylation activity.
Eur J Med Chem. 2008 Apr; 43(4):781-91.EJ

Abstract

Inhibition of the epidermal growth factor receptor (EGFR) tyrosine kinase is one among the pivotal targets for the treatment of cancer. The structural investigation directly halting the EGFR autophosphorylation is expected to give insights into alternatively blocking the aberrant activity of EGFR. The three-dimensional quantitative structure-activity relationship (3D-QSAR) models were developed from the systematic search conformer-based alignment method. Models derived from the training set of 95 compounds showed superior CoMFA as compared with CoMSIA (CoMFA: q(2)=0.50, r(2)=0.74, N=5, F=48.83, r(2)(pred)=0.56 while CoMSIA: q(2)=0.48, r(2)=0.62, N=2, F=72.70, r(2)(pred)=0.51). Validation of the models by test set prediction of 26 compounds was in good agreement with the experimental results. Further validation by molecular docking superimposition into the 3D-QSAR contour maps was found in agreement with each other. We identified that the structural modification of compound 19 by attachment of a bulky group on pyrrole ring along with an electronegative group on quinazoline ring and a hydrogen-bond donor on methyl formate opens a new avenue towards the optimization of novel chemical entities to develop potent inhibitors for EGFR autophosphorylation.

Authors+Show Affiliations

Life Science Division, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, South Korea. amor.san_juan@up.edu.ph

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17689836

Citation

San Juan, Amor A.. "Towards Predictive Inhibitor Design for the EGFR Autophosphorylation Activity." European Journal of Medicinal Chemistry, vol. 43, no. 4, 2008, pp. 781-91.
San Juan AA. Towards predictive inhibitor design for the EGFR autophosphorylation activity. Eur J Med Chem. 2008;43(4):781-91.
San Juan, A. A. (2008). Towards predictive inhibitor design for the EGFR autophosphorylation activity. European Journal of Medicinal Chemistry, 43(4), 781-91.
San Juan AA. Towards Predictive Inhibitor Design for the EGFR Autophosphorylation Activity. Eur J Med Chem. 2008;43(4):781-91. PubMed PMID: 17689836.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Towards predictive inhibitor design for the EGFR autophosphorylation activity. A1 - San Juan,Amor A, Y1 - 2007/07/05/ PY - 2007/01/25/received PY - 2007/06/13/revised PY - 2007/06/15/accepted PY - 2007/8/11/pubmed PY - 2008/7/17/medline PY - 2007/8/11/entrez SP - 781 EP - 91 JF - European journal of medicinal chemistry JO - Eur J Med Chem VL - 43 IS - 4 N2 - Inhibition of the epidermal growth factor receptor (EGFR) tyrosine kinase is one among the pivotal targets for the treatment of cancer. The structural investigation directly halting the EGFR autophosphorylation is expected to give insights into alternatively blocking the aberrant activity of EGFR. The three-dimensional quantitative structure-activity relationship (3D-QSAR) models were developed from the systematic search conformer-based alignment method. Models derived from the training set of 95 compounds showed superior CoMFA as compared with CoMSIA (CoMFA: q(2)=0.50, r(2)=0.74, N=5, F=48.83, r(2)(pred)=0.56 while CoMSIA: q(2)=0.48, r(2)=0.62, N=2, F=72.70, r(2)(pred)=0.51). Validation of the models by test set prediction of 26 compounds was in good agreement with the experimental results. Further validation by molecular docking superimposition into the 3D-QSAR contour maps was found in agreement with each other. We identified that the structural modification of compound 19 by attachment of a bulky group on pyrrole ring along with an electronegative group on quinazoline ring and a hydrogen-bond donor on methyl formate opens a new avenue towards the optimization of novel chemical entities to develop potent inhibitors for EGFR autophosphorylation. SN - 0223-5234 UR - https://www.unboundmedicine.com/medline/citation/17689836/Towards_predictive_inhibitor_design_for_the_EGFR_autophosphorylation_activity_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0223-5234(07)00253-X DB - PRIME DP - Unbound Medicine ER -