Secoiridoide


Secoiridoide sind Spezialformen der Iridoide. Sie unterscheiden sich durch eine Spaltung des Cyclopentanringes, was ihnen nur einen heterocyclischen Sechsring ĂŒberlĂ€sst. Die Spaltung kann zur Weitersynthese gebraucht werden, sodass zwei Sechsringe entstehen. Die Stammverbindung der Secoiridoide ist das Secologanin, das eine SchlĂŒsselverbindung in der Biosynthese der meisten Indol-Alkaloide, der China-, Ipecacuanha- und Pyrrolochinolin-Alkaloide sowie einfacher Monoterpen-Alkaloide ist.[1]
| Trivialname | Summenformel | relative Molmasse (Mr) |
Schmelzpunkt | Spezifischer Drehwinkel [α]D in °·ml·dmâ1·gâ1 (Lösungsmittel) |
CAS-Nummer |
|---|---|---|---|---|---|
| Secologanin (Lonicerosid) | C17H24O10 | 388,37 | amorph | â105 (Methanol) | 19351-63-4 |
| SecologaninsÀure | C16H22O10 | 374,34 | amorph | 60077-46-5 | |
| Vogelosid | C17H24O10 | 388,37 | amorph | 60077-47-6 | |
| Swerosid | C16H22O9 | 358,35 | amorph | â236 (Wasser) | 14215-86-2 |
| Swertiamarin (Swertiamarosid) | C16H22O10 | 374,34 | 113â114 °C | â127 (Ethanol) | 17388-39-5 |
| Eustomosid | C16H22O11 | 390,34 | amorph | â123 (Methanol) | 74213-75-5 |
| Eustomorussid | C16H24O12 | 408,36 | amorph | â73 (Methanol) | 74213-77-7 |
| Secoxyloganin | C17H24O11 | 404,37 | 58822-47-2 |
Einzelnachweise
- â a b Eintrag zu Secoiridoide. In: Römpp Online. Georg Thieme Verlag, abgerufen am 10. Juni 2015.
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