A new indol alkaloid from the root of Alstonia yunnanensis
LAI Qi, DUAN Yun-feng, MA Yan-hua, YANG Chun-ju, ZHUANG Min, LYU Dian, YIN Jun-lin, ZENG Guang-zhi
NATURAL PRODUCT RESEARCH AND DEVELOPMENT . 2021, (4): 607 -611 .  DOI: 10.16333/j.1001-6880.2021.4.010