1. Studies on plants containing indole alkaloids. VI. Minor bases of Uncaria rhynchophylla Miq
- Author
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Junko Kurita, Morio Fujiu, Etsuji Yamanaka, Joju Haginiwa, Norio Aimi, Shin-ichiro Sakai, and Nobuo Shinma
- Subjects
Indole test ,endocrine system ,Rubiaceae ,Akuammigine ,biology ,Stereochemistry ,Uncaria rhynchophylla ,organic chemicals ,Ether ,General Chemistry ,General Medicine ,biology.organism_classification ,complex mixtures ,chemistry.chemical_compound ,chemistry ,Geissoschizine ,Drug Discovery ,Organic chemistry ,heterocyclic compounds ,Chirality (chemistry) ,Cotton effect - Abstract
Two minor alkaloids were newly isolated from Uncaria rhynchophylla MIQ., and their structures elucidated as geissoschizine methyl ether (a new compound) and akuammigine, respectively. The Cotton effect due to the chirality of the E ring of heteroyohimbinoid alkaloids was studied by using some model compounds. The conformation of akuammigine was also studied.
- Published
- 1977
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