Results 171 to 180 of about 7,345 (218)

Chemical constituents of alstonia venenata R.Br.

Tetrahedron, 1965
Venenatine and isovenenatine, two new indole alkaloids from Alstonia venenata R.Br., have been shown to have structures I and V respectively.
T R, Govindachari, N, Viswanathan, B R, Pai, T S, Savitri   +3 more
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Alkaloids of Alstonia coriacea

Phytochemistry, 1989
Abstract Seven alkaloids have been identified from the stem bark of Alstonia coriacea from New Caledonia. They are gentianine, 10-methoxy deplancheine, vincamajine, desmethylquaternine, 10-methoxy-3- epi -α-yohimbine, corialstonine and cabucraline. Corialstonine is a novel member of the little represented quinoline alkaloid series.
Abdallah Cherif, Georges Massiot, Louisette Le Men-Olivier, Jacques Pusset, Stéphane Labarre   +4 more
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Alkaloids of Alstonia lanceolata

Phytochemistry, 1981
Abstract Thirteen alkaloids were isolated from the stem bark of Alstonia lanceolata .
J. Vercauteren, G. Massiot, T. Sévenet, B. Richard, V. Lobjois, L. Le Men-Olivier, J. Lévy   +6 more
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Euseius alstoniae

Published as part of Biswas, Shubhadeep & Karmakar, Krishna, 2025, Three new species of Euseius (Mesostigmata: Phytoseiidae) from Tamil Nadu, India, with redescription of Euseius ovalis and key to the Indian species, pp.
Biswas, Shubhadeep, Karmakar, Krishna
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Alkaloids from Alstonia congensis

Phytochemistry, 1989
Abstract Fifteen alkaloids were found in the root bark, stem bark and leaves of Alstonia congensis. They are echitamidine, echitamine, nor-echitamine, 17-acetoxy-nor-echitamine, akuammicine, 12-methoxyakuammicine, 12-methoxy-N(4)-methylakuammicine, tubotaiwine, 12-methoxytubotaiwine, angustilobines A and B, 6,7-seco angustilo-bines A and B ...
Catherine Caron, Alain Graftieaux, Georges Massiot, Louisette Le Men-Olivier, Clement Delaude   +4 more
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Alkaloids of Alstonia sphaerocapitata

Phytochemistry, 1984
Abstract Twenty alkaloids have been isolated from the leaves, fruit and stem-bark of Alstonia sphaerocapitata from New Caledonia. They were vincamedine, 10-methoxyvincamedine, Z-isositsirikine, akuammicine, quaternoline, 11-methoxyakuammicine, tubotaiwine, 10-methoxyvincamedine N (4)-oxide, cabucraline, cathafoline, caberoline, vincoridine ...
C. Caron, Y. Yachaoui, G. Massiot, L. Le Men-Olivier, J. Pusset, T. Sévenet   +5 more
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Alkaloids of Alstonia angustifolia

Phytochemistry, 1988
Abstract Thirty-one alkaloids have been isolated from the leaves and from the stem bark of Alstonia angustifolia from Malaysia. Twenty of them were known compounds: yohimbine, O -acetyl yohimbine, pleiocarpamine, fluorocarpamine, cathafoline, cabucraline, N -1 desmethylquaternine, vincamajine, normacusine B, lochnerine, affinisine, akuammicine ...
K. Ghedira, M. Zeches-Hanrot, B. Richard, G. Massiot, L. Le Men-Olivier, T. Sevenet, S.H. Goh   +6 more
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Alstonia scholaris R. Br.

2007
Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part E), pp. 490-515 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 490, DOI: 10.5281/zenodo ...
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Alkaloids from Alstonia scholaris

Phytochemistry, 1997
Abstract Three new indole alkaloids, nareline ethyl ether, 5- epi -nareline ethyl ether and scholarine- N (4)-oxide, in addition to nareline methyl ether, picrinine and scholaricine were isolated from the leaf extract of Alstonia scholaris . © 1997 Elsevier Science Ltd.
Kam Toh-Seok, Nyeoh Kok-Tih, Sim Kooi-Mow, K. Yoganathan   +3 more
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Alkaloids of Alstonia plumosa

Phytochemistry, 1980
Abstract Nineteen indole alkaloids have been isolated from the root and stem barks of Alstonia plumosa, from New Caledonia.
M.J. Jacquier, J. Vercauteren, G. Massiot, L. Le Men-Olivier, J. Pussett, T. Sevenet   +5 more
openaire   +1 more source