Collect. Czech. Chem. Commun. 1987, 52, 476-486
https://doi.org/10.1135/cccc19870476

Brassino steroids with androstane and pregnane skeleton

Ladislav Kohouta, Helena Velgováa, Miroslav Strnadb and Miroslav Kamínekc

a Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6
b Institute of Experimental Botany, Czechoslovak Academy of Sciences, 722 00 Olomouc
c Institute of Experimental Botany, Czechoslovak Academy of Sciences, 160 00 Prague 6

Abstract

New brassino steroids XII, XXI, and XXIII were synthesized. These compounds, together with some intermediates of their synthesis, were tested for brassinolide activity. In the bean second internode bioassay, the androstane intermediate V exhibited a surprisingly high activity whereas the other tested compounds were substantially less active.