Nagashima F, Suzuki M, Takaoka S, Asakawa Y
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan.
Chem Pharm Bull (Tokyo). 2000 Nov;48(11):1818-21. doi: 10.1248/cpb.48.1818.
Three new clerodane-type diterpenoids have been isolated from the Japanese liverwort Jungermannia infusca (Mitt.) Steph., together with previously known compounds, nine clerodane- and four labdane-type diterpenoids, and 5-tocopherol. The structures of the new compounds were confirmed by 2D NMR experiments and X-ray crystallographic analysis.