抄録
From the fruits of Angelica pubescens MAXIM. (Umbelliferae), nine coumarins, osthol (1), byak-angelicin (9), ferulin (14), oxypeucedanin (15), umbelliferone (16), umbelliprenin (17), imperatorin (18), neobyakangelicol (19), 5-methoxy-8-(2-acetoxy-3-hydroxy-3-methylbutoxy) psoralen [sec-O-acetylbyakangelicin] (20) were isolated. The major component 17 was isolated for the first time from the plants growing in Japan.
