simmzx/SynFrag

Synthetic Accessibility via Fragment Assembly Generation

51
/ 100
Established

SynFrag helps medicinal chemists and drug discovery scientists quickly assess how easy or difficult it will be to synthesize a potential drug molecule. You provide a molecule's chemical structure (SMILES string), and it predicts a "Synthetic Accessibility" score. This score helps you decide if a compound is feasible to create in the lab or if you should explore alternative designs, much like an experienced synthetic chemist would.

Available on PyPI.

Use this if you need to rapidly screen many candidate molecules for their synthetic feasibility during early-stage drug discovery, prioritizing those that are easier to make.

Not ideal if you need a detailed, step-by-step retrosynthesis plan, as SynFrag focuses on overall synthetic accessibility, not specific reaction pathways.

drug-discovery medicinal-chemistry compound-design synthetic-feasibility molecule-screening
No Dependents
Maintenance 10 / 25
Adoption 6 / 25
Maturity 24 / 25
Community 11 / 25

How are scores calculated?

Stars

21

Forks

3

Language

Python

License

MIT

Last pushed

Feb 01, 2026

Commits (30d)

0

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