Virginiamycin S1 is a streptozotocin B antibiotic produced by Streptomyces verticillioides, which has antibacterial activity by inhibiting bacterial protein synthesis at the level of aminoacyl-tRNA binding and peptide bond formation.

2'-O-(2-azidoethyl)adenosine is a purine nucleoside analog with potential antitumor activity.

Phleomycin is one of the anticancer glycopeptide antibiotics which cause DNA cleavage.