An example of the co-occurrence of enantiomeric labdane-type diterpenes in the leaves of Mimosa hostilis

Abstract

Two labdane-type diterpenes 4 and 5 isolated from the Brazilian medicinal plant Mimosa hostilis were confirmed to have absolute configurations in enantiomeric relation to each other by X-ray crystallographic analysis of p-bromophenyl carbamate derivative 5a and comparison between 4a and 5b, readily available from 5a.