Figure 1.
Structural variety of the hygrolide family. (A) Sites of known structural variability in hygrolide antibiotics are indicated. Variations include stereochemistry, glycosylation, acylation, methylation, oxidation state, and ring-opening, among others. (B) Six main scaffolds of the hygrolide antibiotics. Names under the drawings indicate scaffold name rather than the exact name of the natural product(s). (C) Structure of JBIR-100 with the fumarate moiety containing an electrophilic alkene suitable for nucleophilic addition highlighted with a yellow circle.