Amide alkaloids from the stems of Piper kadsura
ZHU Ying, KONG Jiang-bo, SUN Pan-ting, SUN Yan-jun, FENG Wei-sheng, LI Yu-xian , CHEN Hui
NATURAL PRODUCT RESEARCH AND DEVELOPMENT . 2021, (9): 1506 -1512 .  DOI: 10.16333/j.1001-6880.2021.9.008