作者:Bingya Jiang、Sheng Lin、Chenggen Zhu、Sujuan Wang、Yanan Wang、Minghua Chen、Jianjun Zhang、Jinfeng Hu、Naihong Chen、Yongchun Yang、Jiangong Shi
DOI:10.1021/np300225t
日期:2012.6.22
diterpenoid alkaloids, 1–26 (1–4: hetisan-type C20-diterpenoid alkaloids; 5–26: aconitane C19-diterpenoid alkaloids), and two known analogues, hypaconitine 27 and benzoylmesaconine 28, have been isolated from a water extract of the lateral root of Aconitum carmichaelii. Compounds 7 and 8 are rare examples of conformational isomers obtained from the same material. The conformation and conformational transformation
二十六个新二萜生物碱,1 - 26(1 - 4:hetisan-C型20种-diterpenoid生物碱; 5 - 26:aconitaneÇ 19 -diterpenoid生物碱),以及两个公知的类似物,次乌头碱27和苯甲酰美沙乌头28,已被分离从虎头草侧根的水提取物中提取。化合物7和8是从同一材料获得的构象异构体的稀有实例。C 19中环A的构象和构象转化在NMR数据分析的基础上,结合CuKα辐射的异常散射,结合6和27的单晶X射线晶体学,讨论了双二萜生物碱。在初步的镇痛和毒性试验中,发现椅子构型(8或27)中带有A环的异构体比船形结构(7或27a)中带有A环的异构体更具活性。此外,15,16,和19表现出神经保护活性。