Flavanol compound, and preparation method and application thereof

The invention relates to a natural medicine, and particularly relates to novel flavanol compound in a Uraria clarkei, and a preparation method and application thereof. The invention provides the flavanol compound, and the preparation method and application thereof. The flavanol compound is separated and prepared from the Uraria clarkei. The structural formula of the compound is a formula (I) shown in the specification. The preparation method of the compound in the formula (I) comprises the steps of a, crushing; b, extracting by refluxing; c, concentrating; d, extracting, and e, separating. The compound in the formula (I) prepared by the preparation method provided by the invention has significant anti-cancer activity and activity of resisting marine fouling organisms, has obvious inhibition effect on cells of tumors, human cervical carcinoma, human chronic myeloid leukemia or human acute myelogenous leukemia, has good antitumor activity and good application prospect, also displays strong activity of inhibiting biofouling, and can provide valuable pilot compounds for development of an anti-fouling paint or other anti-fouling products.