Peganumine A, a β-carboline dimer with a new octacyclic scaffold from Peganum harmala

  • Org Lett. 2014 Aug 1;16(15):4028-31. doi: 10.1021/ol501856v.
Kai-Bo Wang  1 ,  Ying-Tong Di ,  Yu Bao ,  Chun-Mao Yuan ,  Gang Chen ,  Da-Hong Li ,  Jiao Bai ,  Hong-Ping He ,  Xiao-Jiang Hao ,  Yue-Hu Pei ,  Yong-Kui Jing ,  Zhan-Lin Li ,  Hui-Ming Hua
Affiliations
  • 1. Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University , Shenyang 110016, Liaoning, P. R. China.
Abstract

Peganumine A (1), a new dimeric β-carboline alkaloid characterized by a unique 3,9-diazatetracyclo[6.5.2.0(1,9).0(3,8)]pentadec-2-one scaffold, was isolated from the seeds of Peganum harmala. The structure including the absolute configuration was determined by spectroscopic data, X-ray crystallography, ECD calculation, and CD exciton chirality approaches. Compound 1 showed moderate cytotoxic activity against MCF-7, PC-3, and HepG2 cells and selective effects on HL-60 cells with an IC50 value of 5.8 μM.

Products