Curcuma wenyujin

Curdione (120) was also treated in A. niger to afford two allylic alcohols (133,134) and a spiro-lactone (135). C. aromatica and Curcuma wenyujin produced spirolactone (135), which might be formed from curdione via transannular reaction in vivo and was biotransformed to spirolactone diol (135) (Asakawa et al., 1991 Sakui et al., 1992) (Figure 20.44). 

Rhizomes of Curcuma sp. such as C. aromatica, C. zedoaria, C. xanthorrhiza, C. longa and C. wenyujin are used in traditional medicine in Asia, particularly, the essential oil of C. wenyujin which is used as a clinical remedy for uterus cancer in China [137]. 

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