Chen Chiy-Rong, Liao Yun-Wen, Wu Hui-Ting, Shih Wen-Ling, Tzeng Chih-Ying, Yang Sheng-Zehn, Hernandez Carlos Eduardo, Chang Chi-I
Department of Biological Science and Technology, Meiho Institute of Technology, Pingtung 91201, Taiwan.
Chem Pharm Bull (Tokyo). 2010 Mar;58(3):408-11. doi: 10.1248/cpb.58.408.
Two new fernane triterpenoids, 7alpha-hydroxyfern-8-en-11-one (1) and 11beta-hydroxyfern-8-en-7-one (2), and two new filicane triterpenoids, 3beta-hydroxyfilic-4(23)-ene (3) and filicenol (5), together with one known filicane-type triterpenoid, 3alpha-hydroxyfilic-4(23)-ene (4), were isolated from the methyl alcohol extract of the leaves of Angiopteris palmiformis. Their structures were elucidated on the basis of extensive analyses of their spectroscopic data (NMR, MS, IR) and comparison with spectroscopic data in the literature.
