Abstract
Two new 24-membered macrolides, SPA-6952A and B, were isolated from the fermentation broth of Streptomyces sp. SPA-6952. The structures of the new macrolides were determined by spectral analyses, including 2D NMR techniques. These compounds exhibited cytotoxic activity against human promyelocytic leukemia HL-60 cells.
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Hosotani, N., Kumagai, K., Nakagawa, H. et al. New 24-Membered Macrolides SPA-6952A and B Produced by Streptomyces sp.. J Antibiot 58, 409–411 (2005). https://doi.org/10.1038/ja.2005.52
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DOI: https://doi.org/10.1038/ja.2005.52