Terpenoids. XXVI. Structures of Lasiokaurinol and Lasiokaurinin, Two Novel Diterpenoids of Isodon lasiocarpus (HAYATA) KUDO
1974 年 22 巻 2 号 p. 280-285
詳細
1974 年 22 巻 2 号 p. 280-285
On the basis of chemical and spectroscopic evidence, the structure and absolute configuration of lasiokaurinol isolated from Isodon lasiocarpus (HAYATA) KUDO were established as ent-1β-acetoxy-7β, 20-epoxy-16-kaurene-6α, 7α, 14α, 15α-tetraol (9). The structure of another minor diterpenoid, lasiokaurinin, was proposed as 10 on the basis of spectroscopic evidence. Some chemical reactions confirmed its structure and relative stereochemistry as 10.
