On Sunday, April 20th 2025, starting 8:30am GMT, there will be maintenance work that will involve the website being unavailable during parts of the day. We apologize for any inconvenience this may cause and appreciate your understanding.
We noted you are experiencing viewing problems
-
Check with your IT department that JWPlatform, JWPlayer and Amazon AWS & CloudFront are not being blocked by your network. The relevant domains are *.jwplatform.com, *.jwpsrv.com, *.jwpcdn.com, jwpltx.com, jwpsrv.a.ssl.fastly.net, *.amazonaws.com and *.cloudfront.net. The relevant ports are 80 and 443.
-
Check the following talk links to see which ones work correctly:
Auto Mode
HTTP Progressive Download Send us your results from the above test links at access@hstalks.com and we will contact you with further advice on troubleshooting your viewing problems. -
No luck yet? More tips for troubleshooting viewing issues
-
Contact HST Support access@hstalks.com
-
Please review our troubleshooting guide for tips and advice on resolving your viewing problems.
-
For additional help, please don't hesitate to contact HST support access@hstalks.com
We hope you have enjoyed this limited-length demo
This is a limited length demo talk; you may
login or
review methods of
obtaining more access.
Printable Handouts
Navigable Slide Index
- Introduction
- Fragment-based ligand design (FBLD)
- Work one or more fragments into one compound
- Fragment growing
- Merging and Linking
- Fragment based design popularity
- Arguments against FBLD
- Success milestones in the past
- Software landscape
- 3D approaches
- CAVEAT: a historical FBLD helper
- "Scoring" in CAVEAT
- LUDI program
- MCSS / Hook program
- BROOD program
- SHOP program
- FieldStere program
- MOE Linker Pharmacophores
- FlexNovo
- Non-3D approaches
- CATS and DOGS
- Topomers
- Feature Trees (FTrees) fragment spaces
- ReCore
- Re-scaffolding using vectors
- Major challenges for such software
- ReCore indexed searching
- ReCore results delivery
- ReCore "3D shredding"
- ReCore needs at least 2 vectors
- Optional volumes & shapes
- Three levels of synthetic accessibility checks
- Synthetic access checks & user chemistry
- Avoiding bogus conformations
- Chemical correctness vs. creativity (1)
- Chemical correctness vs. creativity (2)
- ReCore performance in real life
- ReCore proof of concept
- Link, merge, grow fragments FBLD with ReCore
- A striking analogy between FBLD and ReCore
- Linking / merging examples
- Fragment linking example -thrombin
- Fragment linking example -ReCore queries
- Fragment linking example (1)
- Fragment linking example (2)
- Fragment merging
- Thymidylate synthase- a merging example (1)
- Thymidylate synthase in 3D
- Thymidylate synthase- Recore result
- Thymidylate synthase- a merging example (2)
- A growing example
- Growing into a pai-pai interaction pattern
- ABT-737 in 3D
- Growing into a pai-pai pattern- ReCore solution
- ReCore solution in 3D
- Recap: FBLD software assistance
- Further resources
- Recommended further reading
- Acknowledgements
Topics Covered
- Computational chemistry for fragment replacement, fragment evolution/growing/merging & linking
- Bioisostere replacement
- Software assistance for SAR optimisation for medicinal chemists
- Lead optimisation software
Talk Citation
Gastreich, M. (2011, June 26). Pragmatic virtual fragment-based ligand design [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved April 15, 2025, from https://doi.org/10.69645/GAHI4274.Export Citation (RIS)
Publication History
- Published on June 26, 2011
Financial Disclosures
- Dr. Marcus Gastreich has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.