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A new potent anthracycline antibiotic oxaunomycin was isolated from the culture broth of a blocked mutant derived from a baumycin producer and was identified as 7-O-(alpha-L-daunosaminyl)-beta-rhodomycinone. It exhibited about 100 times more strongly cytotoxic activity against leukemic L1210 cell culture than doxorubicin.
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Yoshimoto et al. (1986) studied this question.
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