摘要:
Two new rearranged pinguisane-type sesquiterpenoids, spirodensifolin A and B, a pinguisane-type sesquiterpene, isonaviculol, and two new ent-kaurane-type diterpenoids, ent-kauran-16beta-ol-3-one, ent-kaurane-3beta,16beta-diol, have been isolated from the Bolivian liverwort Frullanoides densifolia, and a pinguisane-type sesquiterpene, furanopinguisanol and lepidozane-type sesquiterpene alcohol have been isolated from the Japanese Trocholejeunea sandvicensis. Their stereostructures have been elucidated by the extensive analysis of the spectral data as well as the X-ray crystallographic analysis.