Author/Authors :
Tanaka، نويسنده , , Naonobu and Kakuguchi، نويسنده , , Yuka and Ishiyama، نويسنده , , Haruaki and Kubota، نويسنده , , Takaaki and Kobayashi، نويسنده , , Jun’ichi، نويسنده ,
Abstract :
Three new tricyclic terpenoids, yezo’otogirins A–C (1–3), were isolated from aerial parts of Hypericum yezoense. The structures including absolute stereochemistry of 1–3 were elucidated from the spectroscopic data and conformational analysis.
