An asymmetric total synthesis of ent-sandaracopimaradiene, a biosynthetic intermediate of oryzalexins, via B-alkyl Suzuki-Miyaura coupling and Lewis acid-mediated B-ring formation as key steps was achieved.
Design, synthesis and anthelmintic activity of 7-keto-sempervirol analogues
作者:Alessandra Crusco、Cinzia Bordoni、Anand Chakroborty、Kezia C.L. Whatley、Helen Whiteland、Andrew D. Westwell、Karl F. Hoffmann
DOI:10.1016/j.ejmech.2018.04.032
日期:2018.5
reported to display moderate activity against larval stages of Schistosoma mansoni (IC50 = 19.1 μM) and Fasciola hepatica (IC50 = 17.7 μM), two related parasitic blood and liver flukes responsible for the neglected tropical diseases schistosomiasis and fascioliasis, respectively. Here, we aimed to increase the potency of 7-keto-sempervirol by total synthesis of 30 structural analogues. Subsequent screening