[Studies on the chemical constitutents of the traditional Chinese medicine "yun qian-hu" (Peucedanum rubricaule Shan et Shch.)].

A new coumarin-glycoside and twelve known coumarins together with seven other known compounds have been isolated from the roots of Peucedanum rubricaule Shan et Shch. (Umbelliferae). The new coumarin-glycoside named rubricauloside, has been elucidated as 5, 7 - dimethoxy - 8 - [2′ - hydroxy - 3′ - methyl, 3′-O-β-Dapiofuranosyl (1→6) - β - D - glucopyranosyl - butyl] - coumarin by means of spectral and chemical analysis.