김영호; Hang Sub Kim; Sung Woo Lee; Masakazu Uramoto; Jung Joon Lee
Phytochemistry, vol. 39, no. 2, pp. 449-451
Two new ent-kaurane derivatives were isolated from the stem bark of Acanthopanax koreanum. On the basis of extensive spectral evidence, their structures were elucidated as ent-16βH,17-isovalerate-kauran-19-oic acid 1 and ent-16βH,17-methyl butanoate-kauran-19-oic acid 2.