セスキテルペノイドの研究 (第1報)
3-Ketotetrahydroalantolactonについて
1954 年 74 巻 7 号 p. 738-741
詳細
1954 年 74 巻 7 号 p. 738-741
The sesquiterpenoid lactone obtained from the rhizome of Inula helenium was reduced with sodium amalgam and dihydroisoalantolactone was isolated as the product. Allyl oxidation of the latter with selenenium dioxide yielded 3-hydroxydihydroisoalantolactone, which was derived to 3-oxotetrahydroalantolactone and compared with tetrahydrosantonin.
