Syntheses of novel acarviosin analogs with anhydro or unsaturated sugar moieties

Thioetherification of Aryl Halides with Thioacetates

A palladium-catalyzed cross-coupling of thioacetates and aryl halides is described herein. Using a catalyst screening kit, ^tBuBrettPhos Pd G3 was found to be a unique catalyst for this reaction, affording the desired thioarene products in high yields under mild reaction conditions. The thioacetate starting materials are readily available, allowing for quick access to these more lab friendly reagents. Reactions described herein range from the late-stage coupling of complex thioacetates to the first report of a mild set of conditions for thiomethylation of aryl halides.

Novel carbohydrate-triazole derivatives as potential α-glucosidase inhibitors

A series of novel pyrano[2, 3-d]trizaole compounds were synthesized and their α-glucosidase inhibitory activities were evaluated by in vitro enzyme assay. The experimental data demonstrated that compound 10f showed up to 10-fold higher inhibition (IC₅₀74.0 ± 1.3 μmol·L^-1) than acarbose. The molecular docking revealed that compound 10f could bind to α-glucosidase via the hydrophobic, π-π stacking, and hydrogen bonding interactions. The results may benefit further structural modifications to find new and potent α-glucosidase inhibitors.