The invention relates to a diterpenoid compound in
callicarpa uniflora, a preparation method and application, the structure of the compound is shown as a formula (1), the compound belongs to the field of natural
medicinal chemistry, and the invention aims to protect the application of the compound in preparation of an NLRP3
inflammasome inhibitor for treating
inflammation. The invention has the following outstanding beneficial effects: 1, so far, there is no report on a pharmaceutical composition with the formula (1) as an effective component in the prior art, and there is no report on the compound and the pharmaceutical composition thereof in preparation of anti-inflammatory drugs for treatment of
inflammation; and 2, the compound obtained by research in the invention inhibits the expression levels of
Caspase-1 and IL-1beta in a
dose-
dependent manner, and inhibits shearing maturation of GSDMD at the same time, which shows that the compound has a significant inhibition effect on NLRP3
inflammasome-mediated inflammatory reaction. According to the invention, the medicinal value of the clerodane diterpenoid compound in the
callicarpa uniflora is expanded.