Abstract: The chemical constituents of the kernels of Capparis masaikai Lévl,Collected at Wenshan,Yunnan province,China were isolated by column chromatography on silica gel,MIC and Sephadex LH-20,and identified by chemical and spectral analyses.Eight compounds were finally isolated and purified from the kernels of C.masaikai. Their structures were elucidated as 1-methoxy-3-indoleformic acid(1),Oxazolidine-2-thione(2),O′-ethyl-1-β-D-arabinofuranosyluracil(3),adenosine(4),psicofuranine(5),ethyl -β-D-fructofuranoside(6),1-β-D-psicofuranosyluracil(7),uridine(8).Compounds 1,3 and 7 were new natural compound from plants.Compounds 4,5 and 6 were obtained from this plant for the first time.

Key words: Capparis masaikai Lé, vl, Capparis, kernels, chemical constituents