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lucimycin

n. A macrolide antibiotic synthesized by the bacterium ''Streptomyces lucensis'', belonging to the group of polyene antimycotics.

Wikipedia
Lucimycin

Lucimycin ( INN, also known as lucensomycin and etruscomycin) is a macrolide antibiotic synthesized by the bacterium Streptomyces lucensis. It belongs to the group of polyene antimycotics and was first isolated in the 1960s. It has seen only limited clinical use.