Abstract: | Three new sesquiterpenes were isolated from Severinia buxifolia, and identified as α-santalen-11-one, dihydro-α-santalen-12-one, and 12,13-epoxy-α-santalene, respectively. α-Photosantalol A, Δ13,14-iso-α-santalol, α-santalene and (E)-5-(2,3-dimethyl-3-nortricyclyl)pent-3-en-2-one were also isolated and characterized. |