Lead Discovery and Rapid Structure Elucidation Group, Sequoia Sciences, Inc., 11199 Sorrento Valley Road, Suite H, San Diego, California 92121, USA. jhu@sequoiasciences.com
One new (1) and four known (2-5) ursene triterpenes with potent inhibition of the formation of the bacterial biofilm Pseudomonas aeruginosa PA01 were obtained from Diospyros dendo using a high-throughput natural products chemistry procedure. These compounds were isolated as mass-limited samples. The miniaturization of the structure elucidation and dereplication was performed primarily utilizing a capillary-scale NMR probe.