LARISINOL,A NEW SPIROBIFLAVONOID FROM Larix gmelinii BARK

摘要

We reported earlier on the observation in bark of Siberian (Larix sibirica Ledeb.) and Gmelin larch [L.gmelinii (Rupr.) Rupr.] of three representatives of a new class of flavonoids,spiroflavonoids,larixinol,larixidinol,and triflarixinol [1-4].In continuation of research on flavonoids from Gmelin larch bark,we isolated a new spirobiflavonoid 1,which we called larisinol.