Synthesis of a DNA-Encoded Macrocyclic Library Utilizing Intramolecular Benzimidazole Formation
Jing Chai, Christopher C. Arico-Muendel, Yun Ding, Michael P. Pollastri, Sarah Scott, Mark A. Mantell, Gang Yao
Abstract
Macrocycles occupy chemical space "beyond the rule of five". They bridge traditional bioactive small molecule drugs and macromolecules and have the potential to modulate challenging targets such as PPI or proteases. Here we report an on-DNA macrocyclization reaction utilizing intramolecular benzimidazole formation. A 129-million-member macrocyclic library composed of a privileged benzimidazole core, a dipeptide sequence (natural or non-natural), and linkers of varying length and flexibility was designed and synthesized.
Topics & Concepts
ChemistryBenzimidazoleIntramolecular forceCombinatorial chemistryDNAChemical spaceStereochemistryDipeptideMacromoleculeSmall moleculeProteasesSequence (biology)Drug discoveryPeptideBiochemistryOrganic chemistryEnzymeChemical Synthesis and AnalysisClick Chemistry and ApplicationsRNA and protein synthesis mechanisms