San-Yao Su

Total Syntheses and Structural Reassignment of Ugonin T and Neougonin B: Anti-inflammatory Flavonoids Related to Helminthostachys zeylanica

Abstract This study reports the first total syntheses of the naturally occurring flavonoids ugonin C (1), ugonin F (2), and, based on the originally proposed structures, compounds 3 and 4 (corresponding to the structures first assigned to ugonin T and neougonin B, respectively),...