Tibor Kurtán2, Attila Mándi2,Yu-Cheng Gu3, Li-Gong Yao3, Guo-Rong Xin4, Xu-Wen Li1 &Yue-Wei Guo1 Eight new tetranortriterpenoids (1–8) were isolated from the twigs and leaves of the Chinese mangrove plant Xylocarpus granatum, together with four related known ones (...