Seven kaurane-type diterpenoids were isolated from the Taiwanese liver
worts Jungermannia truncata. Among them, three are new structures. The
y are: ent-16-kauren-3,15-dione (6), ent-16(S)-kauran-3,15-dione (7),
and ent-14 alpha-hydroxy-16-kauren-15-one (11). From Plagiochila pulch
errima, three known kaurane alcohols were also isolated along with ses
quiterpenoids plagiochilines A, B, C and ent-4 beta,10 alpha-dihydroxy
aromadendrane.