ent-Verticillane-type diterpenoids from the Japanese liverwort Jackiella javanica.
Three ent-verticillane diterpenoids and two ent-sesquiterpenoids were isolated from the Japanese liverwort Jackiella javanica Schiffn. together with five known ent-verticillane and three ent-kaurane diterpenoids, and three sesquiterpenoids. Five ent-verticillane epoxides were synthetically prepared from ent-verticillols action to clarify the absolute configuration of natural ent-9,10-epoxyverticillol. Their structures were established by extensive NMR spectroscopic and X-ray crystallographic analyses.
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-Cho, Tokushima 770-8514, Japan. fnaga@ph.bunri-u.ac.jp
Fumihiro
F
Nagashima
Katsuhiro
K
Kishi
Yuko
Y
Hamada
Shigeru
S
Takaoka
Yoshinori
Y
Asakawa
D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D035926:Hepatophyta / Q000737:chemistry*; D007564:Japan; D008958:Models, Molecular; D015394:Molecular Structure
D004224:Diterpenes