A new ent-kaurane diterpenoid, 1α,6β,11α-triacetoxy-7α,20-epoxy-ent-kaur-16-en-15-one, named as isojaponin C, along with five known diterpenoids, lasiokaurinol, lasiokaurin, oridonin, and epinodosin were isolated from the leaves of Isodon japonicus. Their structures were elucidated on the basis of spectroscopic methods and from literature values.
SunH.D., HuangS.X., and HanQ.B., Nat. Prod. Rep., 2006, 23, 693.
2.
SunH.D., XuY.L., and JiangB., Diterpenoids from isodon species.Science Press, Beijing, 2001, 93.
3.
FujitaE., and NodeM., In Progress in the chemistry of organic natural products, HerzW., GrisebachH., KirbyG.W., and TammC., eds. Springer-Verlag, Vienna, 1984, 77.
4.
ZhangJ.X., HanQ.B., ZhaoA.H., and SunH.D., Fitoterapia, 2003, 74, 435.
