Hexanor-brassinolid-22-ethers

US4591650A · kind A · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Ulrich Kerb
• Ulrich Eder · Berlin, DE
• Hansjorg Krahmer · Hofheim, DE

Key dates

• Filing date: Feb 13, 1984
• Grant date: May 27, 1986
• Expiry date: Feb 13, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J31/006
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

New hexanor-brassinolid-22-ethers are disclosed, of the formula ##STR1## wherein Z is the group ##STR2## OR.sub.2 and OR.sub.3 are oriented cis 2.alpha., 3.alpha. or 2.beta., 3.beta., R.sub.2 and R.sub.3 are the same or different and are each hydrogen formyl, C.sub.2 -C.sub.7 -alkyl-CO--, C.sub.2 -C.sub.7 -alkoxy-C.sub.1 -C.sub.3 -alkyl-CO-- or aryl-CO--, and R.sub.23 is straight-chain or branched C.sub.1 -C.sub.7 -alkyl or C.sub.1 -C.sub.7 -alkoxy-C.sub.1 -C.sub.3 -alkyl. Also disclosed are processes for the production of these compounds as well as compositions containing the same having growth-regulatory activity for plants.