Oxindole
Application Notes
Oxindole is a simple indole analogue isolated from both bacteria (Chromobacterium violaceum) and fungi (a basidiomycete, Calyptella sp. and an ascomycete, Pencillium sp.). Oxindole exists as the dominant tautomer of 2-hydroxyindole both in solution and as a solid. Oxindole has been reported as an inhibitor of phospholipase A2 and platelet aggregation. Its unusual distribution in microbes makes oxindole a useful standard for analytical and bioassay dereplication of crude microbial extracts.
References
- Bacterial chemistry. VI. Biological activities and cytotoxicity of l,3-dihydro-2H-indol-2-one derivatives. Haun M. et al., Biol. Res. 1992, 25, 21.
- 5-Hydroxy-3-vinyl-2(5H)-furanone, a new inhibitor of human synovial phospholipase A2 and platelet aggregation from fermentations of a Calyptella species (Basidiomycetes). Lorenzen K. et al., Z. Naturforsch. 1995, 50c, 403.
- A new inhibitor of synovial phospholipase A2 from fermentations of Penicillium sp. 62-92. Witter L. et al., Z. Naturforsch. 1998, 53c, 60.