Bisabolane- and Santalane-Type Sesquiterpenoids from Santalum album of Indian Origin

Six new bisabolane-type (1−3) and santalane-type (4−6) sesquiterpenoids, together with (+)-α-nuciferol, (+)-citronellol, and geraniol, were isolated from the heartwood of Santalum album of Indian origin. Their structures, including two bisabolol diastereomers (1, 2), were established on the basis of spectroscopic data interpretation.