| 摘要 |
<p>Novel microorganisms belonging to the genus Micromonospora capable of producing antibiotics YS-02930 K-D, -E or -H represented by formula: <IMAGE> wherein R represents a hydrogen atom or a formyl group and a dotted line represents a double bond or a bond shown by: <IMAGE> are disclosed. The antibiotics are produced by culturing bacteria belonging to the genus Micromonospora capable of producing at least one antibiotic selected from YS-02930 K-D, -E and -H and, harvesting antibiotic YS-02930 K-D, -E or -H.</p> |
