Sesquiterpene lactones from Liatris acidota, L. Aspera and L. Mucronata |
| |
| Authors: | Werner Herz Palaniappan Kulanthaivel |
| |
| Institution: | Department of Chemistry, The Florida State University, Tallahassee, FL 32306, U.S.A. |
| |
| Abstract: | Examination of Liatris mucronata gave the known 15-hydroxylated heliangolides liscundin, liscunditrin, punctaliatrin and two new closely related heliangolides. Liatris acidota furnished six new similar but 15-deoxygenated heliangolides as well as euparin and 3β-acetoxytaraxaster-20-en-30-aldehyde. Liatris aspera gave a known glycosidic germacradienolide and a new germacradienolide as well as several known flavones and a known benzofuran. Structures were established by spectroscopic methods and chemical transformations. |
| |
| Keywords: | Compositae Eupatorieae sesquiterpene lactones heliangolides germacradienolides flavones 3β-acetoxytaraxaster-20-en-30-aldehyde benzofurans |
| 本文献已被 ScienceDirect 等数据库收录！ |
