| abstract |
A microorganism capable producing a substance FKI-1033 represented by the following formula: is cultured in a medium to accumulate the FKI-1033 in the culture medium and then the FKI-1033 is collected from the culture medium. Because of having ryanodine antagonism, insecticidal activity and anti-parasitic worm activity, the thus obtained FKI-1033 is expected as being useful as a chemical having satisfactory efficaciousness, toxicity, etc. and being applicable to pesticides, veterinary medicines and medicines. |