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Trustworthy Retrosynthesis: Eliminating Hallucinations with a Diverse Ensemble of Reaction Scorers

Created by
  • Haebom

Author

Michal Sadowski, Tadija Radusinovi c, Maria Wyrzykowska, Lukasz Sztukiewicz, Jan Rzymkowski, Pawe{\l} W{\l}odarczyk-Pruszy nski, Miko{\l}aj Sacha, Piotr Kozakowski, Ruard van Workum, Stanislaw Kamil Jastrzebski

Outline

RetroTrim is a system developed to address the problem of irrational or erroneous outputs (hallucinations) in retrosynthesis, a field that has undergone significant changes due to advances in generative models. RetroTrim successfully avoids irrational plans by combining machine learning models with various reaction scoring strategies based on existing chemical databases. This system not only filters out hallucinogenic reactions but also generates the largest number of high-quality pathways overall. RetroTrim won the Standard Industries Million Retrosynthetic Challenge. Furthermore, we propose a novel reaction and synthetic pathway evaluation protocol based on structured reviews by expert chemists. Using this protocol, we compare the systems against 32 new targets, carefully selected to reflect recent trends in drug structure.

Takeaways, Limitations

Takeaways:
The first successful system to filter hallucinogenic responses and generate high-quality pathways.
Improve performance by combining different response scoring strategies.
Presenting a new expert-based assessment protocol.
Particularly effective in drug-like domains.
Winner of the Retrosynthesis Challenge.
Limitations:
There is no specific mention of Limitations in the paper.
The scope of the study is limited to drug-like targets.
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