Four tetracyclic oxindole alkaloids and a taberpsychine derivative from a Malayan Tabernaemontana
| Autor: | Kooi-Mow Sim, Guan Huat Tan, Toh-Seok Kam, Kuan-Hon Lim |
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| Rok vydání: | 2009 |
| Předmět: |
Indoles
Molecular Structure biology Tabernaemontana Stereochemistry Alkaloid Plant composition Malaysia Ms analysis Stereoisomerism Plant Science General Medicine Horticulture biology.organism_classification Biochemistry Indole Alkaloids Oxindoles chemistry.chemical_compound chemistry Oxindole Nuclear Magnetic Resonance Biomolecular Molecular Biology Derivative (chemistry) Tabernaemontana corymbosa |
| Zdroj: | Phytochemistry. 70:1182-1186 |
| ISSN: | 0031-9422 |
| Popis: | Four tetracyclic oxindole alkaloids, 7(R)- and 7(S)-geissoschizol oxindole (1 and 2), 7(R),16(R)- and 7(S),16(R)-19(E)-isositsirikine oxindole (3 and 4), in addition to a taberpsychine derivative, N(4)-demethyltaberpsychine (5), were isolated from the Malayan Tabernaemontana corymbosa and the structures were established using NMR and MS analysis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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