title: Five New Alkaloids from Cephalotaxus lanceolata and C. fortunei var. alpina.
abstract: Five new alkaloids (1-5) were isolated from the leaves and twigs of Cephalotaxus lanceolata and C. fortunei var. alpina along with 24 known alkaloids. The new structures were elucidated based on spectroscopic data including 1D and 2D NMR, FTIR, UV and MS. These new alkaloids showed no cytotoxicity to HeLa, SGC-7901 gastric cancer, and A-549 lung cancer cell lines.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.|University of Chinese Academy of Sciences, Beijing, 100039, People's Republic of China.
authors.forename: Ling
authors.initials: L
authors.lastname: Ni
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.|University of Chinese Academy of Sciences, Beijing, 100039, People's Republic of China.
authors.forename: Xiu-Hong
authors.initials: XH
authors.lastname: Zhong
authors.affiliation: Germplasm Bank of Wild Species in Southwest China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Cai
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
authors.forename: Mei-Fen
authors.initials: MF
authors.lastname: Bao
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.|University of Chinese Academy of Sciences, Beijing, 100039, People's Republic of China.
authors.forename: Bing-Jie
authors.initials: BJ
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.|University of Chinese Academy of Sciences, Beijing, 100039, People's Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China. xhcai@mail.kib.ac.cn.
authors.forename: Xiang-Hai
authors.initials: XH
authors.lastname: Cai
keywords: Alkaloids; Cephalotaxus; Cytotoxicity