Altromycin G is an antibiotic that primarily targets Gram-positive bacteria and has strong antitumor activity[1].
References
[1] BRILL G M, et al. Altromycins E, F, G, H and I; additional novel components of the altromycin complex[J]. The Journal of Antibiotics, 1994, 47(10): 1160-1164. DOI:10.7164/antibiotics.47.1160