%A HAO Xiao-Jiang, ZHOU Jun, Fuji Kaoru, Node Manabu %T THE CHEMICAL STRUCTURES OF SPIRAMINE J,K,L AND M %0 Journal Article %D 1992 %J Plant Diversity %R %P 1-3 %V 14 %N 03 %U {https://journal.kib.ac.cn/CN/abstract/article_31341.shtml} %8 1992-06-25 %X Four new diterpenoid alkaloids, spiramine J(l), K(2), L(3), and M(4), containing imine bond and acetonyl groups, were isolated from Spiraea japonica var. acuminata Franch. Their chemical structures were elucidated by chemical and spectroscopic means.