Results 171 to 180 of about 2,470 (216)
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Alkaloids of Alstonia angustifolia
Phytochemistry, 1988Abstract 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 +6 more
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Phytochemistry, 1980
Abstract Nineteen indole alkaloids have been isolated from the root and stem barks of Alstonia plumosa, from New Caledonia.
M.J. Jacquier +5 more
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Abstract Nineteen indole alkaloids have been isolated from the root and stem barks of Alstonia plumosa, from New Caledonia.
M.J. Jacquier +5 more
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Alkaloids of Alstonia sphaerocapitata
Phytochemistry, 1984Abstract 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 +5 more
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Alkaloids of Alstonia macrophylla
Phytochemistry, 1987Abstract A new alkaloid, 19-hydroxyvincamajine, has been isolated from the leaves of Alstonia macrophylla . In addition to this, eight other indole alkaloids, alstonerine, alstophylline, macralstonine, anhydromacralstonine, talcarpine, vincamajine, vincorine and cabucraline, were also isolated and identified from the bark and leaves of A ...
Chitra K. Ratnayake +4 more
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Alkaloids of Alstonia coriacea
Phytochemistry, 1989Abstract 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 +4 more
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ChemInform Abstract: Indole Alkaloids from the Leaves of Alstonia villosa in Sunbawa (Alstonia 6).
ChemInform, 1999AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
F. ABE +4 more
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Alkaloids from Alstonia scholaris
Phytochemistry, 1997Abstract 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 +3 more
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Alkaloids from alstonia undulifolia
Phytochemistry, 1992Abstract (+)-Tetrahydrocantleyine, (−)-cantleyine, (−)-akuammicine, pleiocarpamine, echitamidine, 20- epi -19 & xi;-echitamidine, echitamine, nor-echitamine and undulifoline, a new alkaloid with the rare uleine skeleton, have been isolated from the stem bark of Alstonia undulifolia . The structures were established by spectroscopic means.
Georges Massiot +6 more
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Alkaloids from Alstonia congensis
Phytochemistry, 1989Abstract 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 +4 more
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