[Synthesis and character of megastigmatrienone].

In this synthetic route, the raw materials are obtained easily and the conditions of reactions are smoothly. The products in some main procedures of the route have high yieds. This synthetic route is a new way of the compound, there hasn't been reported anywhere. It needs further studies to be practically applied. According to this synthetic routes, the authors studied technolygical conditions of the reactions of every step. Some products are analyzed by refractive index, IR, HNMR, and MS and confirmed its structure.