| 摘要 |
NEW MATERIAL:Antibiotics C-8030B, C, D and E. characteristics thereof are as followa; specific rotation [alpha]<23>D (water solution): B=8.0 deg., C=+12.5 deg., D=-10.8 deg., E=-9.1 deg.; molecular weight: B 600, C 800, D 600, E 700; solubility: all compounds are easily soluble in water and dimethyl sulfoxide, and slightly soluble in methanol, etc.; color reaction: all components are positive to periodic acid-benzidine reaction, etc., quasi-positive to Ehrlich reaction, and negative to phthalic acid-aniline reaction, etc.; C compound is unstable in a basic condition and stable in a neutral or acidic condition; the others are stable in a basic and an acidic conditions. USE:Insecticide and miticide effective to tetranychidae and noxious insects. PROCESS:Streptomyces species C-8030 (FERM-P No.4084) is cultured, and the desired compounds are collected from the filtrate of the culturing medium by fractionation using an adsorbent, etc. |
