Isosteroidal Alkaloids from Fritillaria karelinii
Huang Jinchang, Lei Chun, Aisa Haji Akber, Yu Meihua, Yili Abulimiti, Hou Aijun
Chin. J. Org. Chem. . 2019, (3): 842 -847 .  DOI: 10.6023/cjoc201809019