Synthesis of 24-epiteasterone, 24-epityphasterol and their B-homo-6a-oxalactones from ergosterol
作者:Brunhilde Voigt、Jürgen Schmidt、Günter Adam
DOI:10.1016/0040-4020(95)01042-4
日期:1996.2
Continuing a programme directed toward the synthesis of biologically active analogues and potential biogeneric precursors of brassinosteroids the new members 24-epiteasterone (2) and 24- epityphasterol (7) as well as their corresponding lactones 2-deoxy-3,24-diepibrassinolide (3) and 2- deoxy-24-epibrassinolide (8) have been synthesized starting fromergosterol.
Biological Activity of Brassinosteroids - Direct Comparison of Known and New Analogs<i>in planta</i>
作者:Sebastian Wendeborn、Mathilde Lachia、Pierre M. J. Jung、Jörg Leipner、David Brocklehurst、Alain De Mesmaeker、Katharina Gaus、Régis Mondière
DOI:10.1002/hlca.201600305
日期:2017.2
presented. We describe in detail their synthetic preparation, which includes significant improvements of previously reported protocols as well as access to new analogs with functional modifications of the steroid skeleton and of the C(17)‐attached side chain. We report the biological potency of the prepared brassinosteroid analogs as plant hormones, which were carefully established in the French bean