11-O-β-D-glucopyranosyl thamnosmonin
11-O-β-D-glucopyranosyl thamnosmonin, a coumarin glucosides, can be isolated from the roots of Angelica apaensis. 11-O-β-D-glucopyranosyl thamnosmonin has weak inhibitory activity on the aggregation of rabbit platelets induced by PAF, AA, and ADP[1].