Results 11 to 20 of about 98,907 (191)
This paper presents the alkaloids found in green, brown and red marine algae. Algal chemistry has interested many researchers in order to develop new drugs, as algae include compounds with functional groups which are characteristic from this particular ...
Ekrem Sezik +2 more
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Recent Updates on Marine Cancer-Preventive Compounds
The natural compounds derived from marine organisms often exhibit unique chemical structures and potent biological activities. Cancer-preventive activity is one of the rather new activities that has emerged and been extensively studied over the last ...
Sergey A. Dyshlovoy
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Alkaloid content was assessed in the seeds of 59 narrow-leafed lupine (Lupinus angustifolius L.) accessions from the VIR collection in the environments of Leningrad Province.
M. A. Vishnyakova +4 more
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Analysis of alkaloids (indole alkaloids, isoquinoline alkaloids, tropane alkaloids)
Alkaloids are a large cluster of molecules found in Mother Nature all over the world. They are all secondary compounds and collection of miscellaneous elements and biomolecules, derived from amino acids or from transamination. This diverse chemical group is categorized, based on the amino acids that deliver their nitrogen atom and part of their ...
Dey, Prasanta +7 more
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Six new metabolites, including a pair of inseparable mixtures of secofumitremorgins A (1a) and B (1b), which differed in the configuration of the nitrogen atom, 29-hydroxyfumiquinazoline C (6), 10R-15-methylpseurotin A (7), 1,4,23-trihydroxy-hopane-22,30-
Li-Hong Yan +4 more
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Novel Alkaloids from Marine Actinobacteria: Discovery and Characterization
The marine environment is an excellent resource for natural products with therapeutic potential. Its microbial inhabitants, often associated with other marine organisms, are specialized in the synthesis of bioactive secondary metabolites.
Anne-Sofie De Rop +8 more
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Determination of the Total Alkaloid Content of Thermopsis Dry Extract by HPTLC-Densitometry
When used to quantify alkaloids in thermopsis dry extract, acidimetric titration has several limitations, including insufficient specificity of the method and arbitrary selection of a titration endpoint. Different parts of the Thermopsis lanceolata plant
I. M. Morgunov +4 more
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Narrow-leaved lupine (Lupinus аngustifolius L.) is a widely cultivated leguminous forage and green manure crop with a potential for human nutrition. However, the presence of secondary metabolites – alkaloids – in lupine seeds considerably affects the ...
A. V. Kushnareva +7 more
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CHEMICAL CONSTITUENTS AND EVALUATION OF ANTIPROLIFERATIVE AND ANTI-INFLAMMATORY ACTIVITIES FROM PSYCHOTRIA SCHLECHTENDALIANA (RUBIACEAE) [PDF]
Phytochemical study of Psychotria schlechtendaliana (Rubiaceae) aerial parts resulted in the isolation of alkaloids 4 N oxide harmane (1) and strictosidinic acid (2), and the terpenoids sitosterol, estigmasterol, α-amyrin, β-amyrin and betulinic acid ...
José G. de S. Corrêa +10 more
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The lesser periwinkle Vinca minor accumulates numerous monoterpene indole alkaloids (MIAs) including the vasodilator vincamine. While the biosynthetic pathway of MIAs has been largely elucidated in other Apocynaceae such as Catharanthus roseus, the ...
Emily Amor Stander +14 more
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