New antibiotics xk - 62 - 3 and xk - 62 - 4 and 1995 of manufacture by fermentation of microorganisms of the genus micromonospora

摘要

New antibacterial compounds, XK-62-3 and XK-62-4, are produced by fermentation of microorganisms belonging to the genus Micromonospora. The compounds are accumulated in the culture liquor and are isolated therefrom.