Ni Gang, Fu Nai-Jie, Zhang Di, Yang Han-Ze, Chen Xiao-Guang, Yu De-Quan
a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Chinese Academy of Medical Sciences and Peking Union Medical College, Institute of Materia Medica , Beijing 100050 , China.
J Asian Nat Prod Res. 2015 May;17(5):423-9. doi: 10.1080/10286020.2015.1040777. Epub 2015 May 13.
An unusual 5-C-methylated-dihydrobenzofuroisocoumarin, named multifidarin A (1), and two new ent-kaurane diterpenoids, named multikauranes A (2) and B (3), together with three known ent-kaurane diterpenoids, were isolated from the whole plants of Pteris multifida. The structures of 1-3 were elucidated by spectroscopic methods. The cytotoxic activities of all new compounds were evaluated against five human tumor cell lines. A possible biosynthetic process for the formation of 1 is proposed.
从凤尾草全草中分离得到一个罕见的5-C-甲基化二氢苯并呋喃异香豆素,命名为多裂素A(1),以及两个新的对映-贝壳杉烷二萜,命名为多裂贝壳杉烷A(2)和B(3),还有三个已知的对映-贝壳杉烷二萜。通过光谱方法阐明了1-3的结构。评估了所有新化合物对五种人类肿瘤细胞系的细胞毒活性。提出了1形成的可能生物合成过程。