Abstract
A discovery strategy relying on the identification of fragments through resolution of a constitutional dynamic system, coupled to subsequent static ligand design and optimization, is demonstrated. The strategic design and synthesis of the best molecular fragments identified from a dynamic hemithioacetal system into static ligand structures yielded a range of beta-galactosidase inhibitors. Two series of structures mimicking the hemithioacetal motif were envisaged: thioglycosides and C-glycosides. Inhibition studies provided important structural information for the two groups, and 1-thiobenzyl-beta-D-galactopyranoside demonstrated the best inhibitory effects.
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