C. Duque

Publications104
h-index25
Citations1,743
Highly Influential Citations58
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Analysis of C-glycosyl flavonoids from South American Passiflora species by HPLC-DAD and HPLC-MS.
TLDR
The methods established are simple and can be used as a tool for the characterisation and quality control of pharmaceutical preparations containing these Passiflora extracts.
Changes in volatiles with the application of progressive freeze-concentration to Andes berry (Rubus glaucus Benth)
Cytotoxic and Antimicrobial Activity of Pseudopterosins and seco-Pseudopterosins Isolated from the Octocoral Pseudopterogorgia elisabethae of San Andrés and Providencia Islands (Southwest Caribbean…
TLDR
The anti-microbial profile against four pathogenic microorganisms and the cytotoxic profiles against five human cells lines are reported, where PsQ and PsG were the most active compounds (GI50 values between 5.8 μM to 12.0 μM) and the compounds showed good and selective activity against the Gram-positive bacteria and yeast.
Bacterial Communities of the Gorgonian Octocoral Pseudopterogorgia elisabethae
TLDR
This work has characterized the composition of the bacterial community associated with P. elisabethae collected from Providencia Island, Colombia, using both culture-dependent and culture-independent approaches, and it is revealed that conventional culturing techniques failed to culture the majority of octocoral-associated bacterial diversity.
Cembranoid diterpenes from the Caribbean sea whip Eunicea knighti.
TLDR
Three new cembranoid diterpenes, knightol, knightal, and knightal were isolated as major compounds from the sea whip Eunicea knighti collected from the Colombian Caribbean and showed significant antimicrobial activity against bacterial isolates and excellent anti-QS inhibition activity measured by means of bioluminescence inhibition with biosensor model systems.
Chemical constituents from the Colombian medicinal plant Maytenus laevis.
TLDR
The methanol extract of the bark of the Colombian medicinal plant Maytenus laevis gave six new compounds and 28 known compounds, and canophyllol demonstrated the most effective induction of the cytokines.
Substrate specificity of adrenocortical cytochrome P-450scc--I. Effect of structural modification of cholesterol side-chain on pregnenolone production.
Ophirasterol, a new C31 sterol from the marine sponge Topsentia ophiraphidites
Isolation and synthesis of (-)-(5S)-2-imino-1-methylpyrrolidine-5- carboxylic acid from Cliona tenuis: structure revision of pyrostatins.
TLDR
Comparison of NMR spectral data strongly suggests that pyrostatins A and B are identical to 5-hydroxyectoine and ectoine, respectively.
Absolute stereochemistry of antifouling cembranoid epimers at C-8 from the Caribbean octocoral Pseudoplexaura flagellosa . Revised structures of plexaurolones
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