BUSALIOL AND BUSALICIFOL, 2 NEW TETRAHYDROFURAN LIGNANS FROM BUPLEURUM-SALICIFOLIUM

Three tetrahydrofuran lignans [1-3] were obtained from the leaves of B upleurum salicifolium, of which busaliol [1] and busalicifol [2] are n ovel. Their structures were determined by spectral and chemical method s. Also obtained in this investigation were a number of other lignans, coumarins, a polyacetylene, and a triterpenoid, all of known structur e.