Zhou Honglei, Hamazaki Atsuko, Fontana Jose Domingos, Takahashi Hironobu, Esumi Tomoyuki, Wandscheer Carolina Bueno, Tsujimoto Hiroaki, Fukuyama Yoshiyasu
Institute of Pharmacognosy, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
J Nat Prod. 2004 Sep;67(9):1544-7. doi: 10.1021/np040077r.
A methanol extract of the ripe fruits of Melia azedarach collected in Curitiba, Parana, Brazil, afforded seven new ring C-seco limonoids (1-7) together with three known limonoids (8-10). The structures of the new compounds were elucidated by NMR and MS analysis and comparison of spectral data with those of previously known compounds. Compounds 4 and 5 exhibited significant inhibitory activity against HeLa S3 cancer cells, whereas 1, 2, 3, and 8 showed weak cytotoxicity.
从巴西巴拉那州库里蒂巴采集的苦楝成熟果实的甲醇提取物中,得到了7种新的C环裂环柠檬苦素(1-7)以及3种已知的柠檬苦素(8-10)。通过核磁共振(NMR)和质谱(MS)分析,并将光谱数据与先前已知化合物的数据进行比较,阐明了新化合物的结构。化合物4和5对HeLa S3癌细胞表现出显著的抑制活性,而化合物1、2、3和8显示出较弱的细胞毒性。