Journal
JOURNAL OF CHEMINFORMATICS
Volume 12, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s13321-020-00431-w
Keywords
De novo structure generation; De novo design; Matched molecular pairs
Categories
Funding
- Ministry of Education, Youth and Sports of the Czech Republic within the INTER-EXCELLENCE project [MSMT-5727/2018-2, LTARF18013]
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Structure generators are widely used in de novo design studies and their performance substantially influences an outcome. Approaches based on the deep learning models and conventional atom-based approaches may result in invalid structures and fail to address their synthetic feasibility issues. On the other hand, conventional reaction-based approaches result in synthetically feasible compounds but novelty and diversity of generated compounds may be limited. Fragment-based approaches can provide both better novelty and diversity of generated compounds but the issue of synthetic complexity of generated structure was not explicitly addressed before. Here we developed a new framework of fragment-based structure generation that, by design, results in the chemically valid structures and provides flexible control over diversity, novelty, synthetic complexity and chemotypes of generated compounds. The framework was implemented as an open-source Python module and can be used to create custom workflows for the exploration of chemical space.
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