Synthesis of aromatic stigmastanes: application to the synthesis of aromatic analogs of brassinosteroids
作者:Sofía L. Acebedo、Fernando Alonso、Javier A. Ramírez、Lydia R. Galagovsky
DOI:10.1016/j.tet.2012.03.082
日期:2012.5
In this paper, we report the first synthesis of aromaticanalogs of brassinosteroids. In order to accomplish this task, we explored two different synthetic approaches, which involved demethylation of the C-19 of stigmasterol to yield A-ring aromatic 3-hydroxystigmastanes. One of the new aromaticanalogs showed a reduced but significant bioactivity when compared to the natural hormones.