Abstract
Lignans e neolignans have attracted much interest over the years on account of their broad range of biological activities. Previous biological activities showed that tetrahydrofuran and dibenzyl butyrolactone lignans possess in vitro and in vivo antischistosomal activities. Then, the aims of this project are: to obtain the dihydrobenzofuran lignans and neolignans 1, 2a, and 2b, as well as…