| 摘要 |
PURPOSE:To obtain the sect composition having excellent acaricidal, insecticidal or parasiticidal activity by culturing a microorganism belonging to the genus Streptomyces in a specific medium. CONSTITUTION:A microorganism belonging to the genus Streptomyces [e.g. Streptomyces lavendulae subsp. lavendulae (FERM BP-4099)] is cultured in a culture medium containing a compound of formula I (R<1> is methyl or ethyl) as a substrate or a cultured cell of the microorganism or extract thereof is brought into contact with a compound of formula I to provide the objective compound of formula II (X, Y and Z are H or OH; A is single bond or O atom, except when X, Y and Z are simultaneously H and A is single bond). |
