摘要:
Pesticidally active substantially pure nikkomicin fractions obtained from Streptomyces tendae Ettlinger et al Tu 901, the fractions being selected from the group consisting of ##STR1## a mixture of nikkomicin I and J, and a mixture of nikkomicin M and N.
摘要:
The invention provides novel polycyclic macrolactones which can be produced, in particular, by a representative of the bacterial genus Verrucosispora. These substances are preferentially distinguished by their pharmacological effect. In particular, they exhibit an antibiotic effect. This antibiotic effect is preferably directed against Gram-positive bacteria.