One particularly promising anti-cancer antibiotic is geldanamycin and a modified form of this drug known as 17aag.
一种特别有潜力的抗癌抗生素是格尔德霉素及其名为17aag的修饰后衍生物。
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Although there was much preclinical interest in the antibiotic geldanamycin as an anti-cancer drug, it turned out to be a poor candidate for clinical trials because of its toxicity.