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J Comput Aided Mol Des. 2012 Nov;26(11):1207-15. doi: 10.1007/s10822-012-9609-3. Epub 2012 Sep 28.

IADE: a system for intelligent automatic design of bioisosteric analogs.

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1
Novartis Institutes for BioMedical Research, Novartis Campus, 4056 Basel, Switzerland. peter.ertl@novartis.com

Abstract

IADE, a software system supporting molecular modellers through the automatic design of non-classical bioisosteric analogs, scaffold hopping and fragment growing, is presented. The program combines sophisticated cheminformatics functionalities for constructing novel analogs and filtering them based on their drug-likeness and synthetic accessibility using automatic structure-based design capabilities: the best candidates are selected according to their similarity to the template ligand and to their interactions with the protein binding site. IADE works in an iterative manner, improving the fitness of designed molecules in every generation until structures with optimal properties are identified. The program frees molecular modellers from routine, repetitive tasks, allowing them to focus on analysis and evaluation of the automatically designed analogs, considerably enhancing their work efficiency as well as the area of chemical space that can be covered. The performance of IADE is illustrated through a case study of the design of a nonclassical bioisosteric analog of a farnesyltransferase inhibitor--an analog that has won a recent "Design a Molecule" competition.

PMID:
23053736
DOI:
10.1007/s10822-012-9609-3
[Indexed for MEDLINE]
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