Triterpenoid Acids from Kadsura longipedunculata. Neokadsuranic Acids B and C: Two Novel Triterpenoids with 14 (13 → 12)abeo-Lanostane Skeletons - Lian-niang, Li; Hong, Xue; Kangouri, Kunio; Ikeda, Akiko; Omura, Sadafumi (Planta Medica, 1989)