Sesquiterpenoids from the roots of Homalomena aromatica

From roots of Homalomena aromatica three new sesquiterpene alcohols, 1β,4β,7α-trihydroxyeudesmane, homalomenol A, and homalomenol B were isolated together with oplopanone, oplodiol and bullatantriol. The structures of the new constituents were elucidated by spectroscopic investigations and chemical transformations.