| 摘要 |
The present invention provides compounds of the general formula: <IMAGE> (I) wherein R1 is a hydroxyl group or an acyl radical of a straight-chained or branched, saturated or, when R2 is an acyl radical other than an acetyl radical and/or R4 is a hydrogen atom and/or R5 is a hydrogen atom or an alkoxy radical, unsaturated monocarboxylic acid containing up to 10 carbon atoms, R2 is a hydroxyl group or an acyl radical of a straight-chained or branched, saturated or, when R1 is an acyl radical and/or R4 is a hydroxyl group and/or R5 is a hydrogen atom or an alkoxy radical, unsaturated monocarboxylic acid containing up to 10 carbon atoms, R3 is an acetyl or methyl radical, R4 is a hydrogen atom, a hydroxyl group or an acetyl radical and R5 is a hydrogen atom, an alkoxy radical containing up to 6 carbon atoms (not only in the alpha - but also in the beta -position) or an additional bond to C22. The present invention also provides insect-destroying agents containing these compounds.
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