(±)-Laetirobin (1) was isolated as a cytostatic lead from Laetiporus sulphureus growing parasitically on the black locust tree, Robinia pseudoacacia, by virtue of a reverse-immunoaffinity system. Using an LC/MS procedure, milligram quantities of (±)-laetirobin (1) were obtained, and the structure of 1 was elucidated by X-ray crystallography and confirmed by NMR spectroscopy. Preliminary cellular studies indicated that (±)-laetirobin (1) rapidly enters in tumor cells, blocks cell division at a late stage of mitosis, and invokes apoptosis. © 2009 American Chemical Society and American Society of Pharmacognosy.
CITATION STYLE
Lear, M. J., Simon, O., Foley, T. L., Burkart, M. D., Baiga, T. J., Noel, J. P., … La Clair, J. J. (2009). Laetirobin from the parasitic growth of Laetiporus sulphureus on Robinia pseudoacacia. Journal of Natural Products, 72(11), 1980–1987. https://doi.org/10.1021/np9002838
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