The structures of all other isolated compounds (3–8, 10, 11) (Fig. 1) were elucidated on basis of their NMR spectroscopic and mass spectrometric data by comparison with spectral data reported earlier. In all cases mass spectrometric measurements indicated the molecular mass and molecular formula. Detailed structure determination was performed by finding spectral similarities in the combined CSEARCH and SPECINFO database system (Robien, 2009). Hirsutenone (3) and hirsutanonol (4) have previously been isolated and described by Terazawa et al. (1973), platyphyllenone (5) by Nomura et al. (1975) and tetrahydrobisdemethoxycurcumin (6) by Ma and Gang (2006).