New indole alkaloids from the leaves of Malaysian Mitragyna speciosa
β Scribed by Hiromitsu Takayama; Mika Kurihara; Mariko Kitajima; Ikram M. Said; Norio Aimi
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 420 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0040-4020
No coin nor oath required. For personal study only.
β¦ Synopsis
Three new monoterpenoid indole alkaloids, i.e., 3,4,5,6-tetradehydromitragynine, mitralactonal, and mitrasulgynine carrying a sulfonate function, were isolated, together with seven known compounds, from the leaves ofMitragyna speciosa native to Malaysia.
π SIMILAR VOLUMES
## Abstract Three new indole alkaloids, 11,12βde(methylenedioxy)danuphylline (**1**), methyl (2__Ξ²__,11__Ξ²__,12__Ξ²__,19__Ξ±__)β6,7βdidehydroβ8,21βdioxoβ11,21βcycloaspidospermidineβ2βcarboxylate (**2**), and (2__Ξ²__,5__Ξ²__)βaspidofractininβ16βol (**3**) were isolated from __Kopsia officinalis__, toge