The Comprehensive Fragment Library (CFL) is a set of small, low flexibility, medicinally interesting fragments. This library originates from a starting set of >3 million potentially synthesizable virtual fragments designed from first principles to maximize exploration of target interactions. Extensive 3D clustering analysis allows broad coverage of chemistry space and provides an immediate follow-up strategy from any screening hit.
Our experience suggests that there is an enormous amount of new chemical matter still available for drug discovery, however it is available primarily by fragment methods. Novel fragments are perfectly situated to develop unique, patentable molecules. By controlling fragment properties from the beginning, better quality preclinical leads can be developed with greater chances for clinical success.