| 摘要 |
NEW MATERIAL:A compound expressed by formula I [V represents H, Oh or oxo; W represents H, OH, halogen atom or 4'-(alpha-L-oleandrosyl)-alpha-L- oleandrosyloxy; X represents methyl, ethyl, isoprophyl, sec-butyl, 1-methyl-1- propenyl, 1-methyl-1-butenyl, etc., when V represents H, and represents 1- methyl-1-propenyl, etc., when V represents OH or oxo; Y represents OH or hydroxyiminop Z represents H or OH]. EXAMPLE:30-Hydroxymilbemycin A4. USE:An insecticidal, miticidal and antiparasitic agent and an intermediate for producing other compounds. PREPARATION:A microorganism, belonging to genus Amycolata, Amycolatopsis, Streptomyces, Absidia, Circinella, Mucor, Syncephalastrum, Mortierella, Rhizopus or Bacillus and capable of converting a compound expressed by formula II or a substrate into a compound expressed by formula I is cultured in a medium.
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