Collect. Czech. Chem. Commun. 1989, 54, 1019-1027
https://doi.org/10.1135/cccc19891019

Brassinolide analogues without side chain

Ladislav Kohouta and Miroslav Strnadb

a Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6
b Institute of Experimental Botany, Czechoslovak Academy of Sciences, 772 00 Olomouc

Abstract

New brassinolide analogues, characterized by a modified androstane structure without substituent in position 17, were prepared. In the second internode assay, 2α,3α-dihydroxy-B-homo-6-oxa-5α-androstan-7-one (XVII) had the highest brassinoid activity.