Diterpenes and tetranorditerpenes from Acritopappus species
作者:Ferdinand Bohlmann、Christa Zdero、Rajinder Kumar Gupta、Robert M. King、Harold Robinson
DOI:10.1016/s0031-9422(00)83946-1
日期:1980.1
Abstract The investigation of four Acritopappus species afforded twenty-three new diterpenes of the labdane or kolavane type and three tetranorditerpenes as well as two new benzofuran derivatives and a hydroxybicyclogermacrene. The structures were elucidated by spectroscopic methods and by some chemical transformations. Though the absolute configuration were not established in all cases, most probably