Related Experiment Video
Updated: Jul 6, 2026

Applying Cheminformatics to Develop a Structure Searchable Database of Analytical Methods
Published on: June 6, 2025
Indirect similarity based methods for effective scaffold-hopping in chemical compounds
Nikil Wale1, Ian A Watson, George Karypis
1Department of Computer Science, University of Minnesota, Twin Cities, Minnesota, and Eli Lilly and Company, Lilly Research Labs, Indianapolis, Indiana, USA. nwale@cs.umn.edu
This study introduces novel methods for drug discovery, enabling the identification of structurally diverse compounds with desired bioactivity. These scaffold hopping techniques improve upon existing approaches for finding new drug candidates.
Area of Science:
- Medicinal Chemistry
- Computational Drug Discovery
- Bioinformatics
Background:
- Screening large compound databases for diverse, bioactive molecules is crucial for drug discovery.
- Existing methods often struggle to balance structural diversity with bioactivity retention.
Purpose of the Study:
- To present novel methods for identifying structurally diverse compounds with desired bioactivity.
- To enable scaffold hopping while maintaining target bioactivity.
Main Methods:
- Utilizing indirect similarity measures beyond structure-based comparisons.
- Analyzing similarity networks formed by query and database compounds.
- Developing techniques to capture network-based, indirect similarities.
Main Results:
- The presented methods significantly outperform previous approaches.
- Demonstrated superior ability in identifying structurally diverse active compounds.
- Showcased enhanced performance in retrieving active compounds overall.
Conclusions:
- The novel methods offer a substantial improvement for scaffold hopping in drug discovery.
- These approaches enhance the retrieval of diverse and active compounds from large databases.
- The findings are critical for advancing efficient drug discovery and development processes.
Related Concept Videos
¹H NMR Chemical Shift Equivalence: Homotopic and Heterotopic Protons
Inductive Effects on Chemical Shift: Overview
Chemical Shift: Internal References and Solvent Effects
The internal reference compound generally used in NMR spectroscopy is tetramethylsilane (TMS). TMS is preferred because it is chemically inert, soluble in NMR solvents, and easily removable. Also, the highly shielded methyl protons in TMS yield an intense...
Molecular Models
Isomerism
Diels–Alder Reaction Forming Bridged Bicyclic Products: Stereochemistry
