Abstract: The invention discloses a phenylbenzofuran compound, preparation method therefor, composition containing the same and medical application thereof. The phenylbenzofuran compound is represented by the formula The preparation method includes a traditional Chinese medicine extraction method by using Sophorae Tonkinensis Radix Et Rhizoma coarse powder as a raw material, and a chemical synthesis method. Active component of the composition is phenylbenzofuran compound, and composition is a drug, food or health product. The application of the phenylbenzofuran compound in the preparation of a drug, a food or health product for preventing or treating a tumor, wherein the tumor is nasopharyngeal carcinoma. The phenylbenzofuran compound is prepared by traditional Chinese medicine extraction method and chemical synthesis method. It has been proved that phenylbenzofuran has certain inhibition effect on nasopharyngeal carcinoma cells CNE-1 and CNE-2 by tumor cell experiments in vitro.

Abstract: The invention discloses a method for improving the content of notoginsenoside R1 in Panax notoginseng, in which the Panax notoginseng plants are sprayed with salicylic acid solution before the Panax notoginseng s are harvested. The method of the present invention can improve the content of notoginsenoside R1 in Panax notoginseng by the pretreatment of Panax notoginseng plants with the salicylic acid solution before harvesting, and can be used in large scale in the conventional cultivation method of Panax notoginseng so as to facilitate large-scale industrialization Production of notoginsenoside R1, to meet the market demand for notoginsenoside R1.