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28-METHYL-BRASSINOSTEROID DERIVATIVES HAVING A PLANT GROWTH-REGULATING ACTION AND THEIR MANUFACTURE AND USE
28-METHYL-BRASSINOSTEROID DERIVATIVES HAVING A PLANT GROWTH-REGULATING ACTION AND THEIR MANUFACTURE AND USE
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机译:具有植物生长调节作用的28-甲基-油菜甾醇衍生物及其制造和使用
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摘要
Novel 28-methyl-brassinosteroid derivatives of the general formula I IMAGE (in which Z represents -CO-O- CH2- or -O-CO-CH2-, and the 3 symbols R2, R3 and R22 each represents H or acyl, at least 1 of these 3 symbols representing acyl, or R22 represents H or acyl and R2 and R3 together represent IMAGE X representing H, optionally chlorinated C1-C4-alkyl or C1-C3- alkoxy and Y representing H, optionally chlorinated C1-C4-alkyl, C1-C3-alkoxy or optionally substituted aryl) and their manufacture. The novel compounds have a plant growth-regulating action, being particularly suitable for influencing the vegetative and generative growth of leguminous plants, for example soya bean plants, and accordingly may be made up with suitable carriers and/or auxiliaries into plant growth- regulating preparations and may be used for treating seeds, living plants and areas of land.
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