PLANTS GROWTH REGULATION AGENT AND METHOD OF ITS ACTIVE SUBSTANCE PRODUCTION

摘要

New hexanor-brassinolid-22-ethers are disclosed, of the formula IMAGE I wherein Z is the group IMAGE OR2 and OR3 are oriented cis 2 alpha , 3 alpha or 2 beta , 3 beta , R2 and R3 are the same or different and are each hydrogen formyl, C2-C7-alkyl-CO-, C2-C7-alkoxy-C1-C3-alkyl-CO- or aryl-CO-, and R23 is straight-chain or branched C1-C7-alkyl or C1-C7-alkoxy-C1-C3-alkyl. Also disclosed are processes for the production of these compounds as well as compositions containing the same having growth-regulatory activity for plants.