The first examples of triketone–cubebane adducts (1 and 2) with an unusual skeleton were isolated from Myrtus communis ‘Variegata’.

In order to construct a coastal eco-city, where is suitable to live, to do business and tour, and utilize fully the advantage of high anion in the air of Dalian coast, seven evaluation criteria system of air anion were proposed. Systematically observed the anion concentration of Qinhuangdao, and made it standardized, systematic and long-time, we observed the anion concentration of the coastal line, Square line in the urban and some scenic spots of Dalian on August 2009, then proposed the concept of building the Health Great Wall and bringing anion to home.