1989 年 37 巻 10 号 p. 2683-2686
Two new kaurene-type diterpenoids, rabdoinflexins A (1) and B (2), were isolated from the leaves of Rabdosia inflexa. Their structures including absolute configuration were elucidated on the basis of spectral data and chemical evidence. A chemical conversion into rabdoserrin A (5) from rabdoinflexin A (1) established the absolute configuration of rabdoserrin A.