Medical application of przewaquinone A

The invention discloses application of przewaquinone A, namely a diterpenoid quinine compound, in preparation of a medicament for resisting tumor vessel angiogenesis. According to the invention, the przewaquinone A is taken as an angiogenesis inhibitor and a malignant tumor resisting reagent, wherein the angiogenesis inhibitor can be used for inhibiting proliferation and diffusion of malignant cells by inhibiting angiogenesis in malignant tissues. Experiments prove that the przewaquinone A can be used for effectively inhibiting the proliferation of the malignant cells and has an obvious inhibition effect on the abnormal growth of the vessels, and therefore the przewaquinone A can be used for preparing the medicament for resisting the tumor vessel angiogenesis.