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Bioactive metabolites from the sponge-derived fungus Aspergillus versicolor
As part of an ongoing search for bioactive metabolites from the fungus Aspergillus versicolor derived from a marine sponge Petrosia sp., an aromatic polyketide derivative (1), two xanthones (2 andExpand
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Simultaneous determination of anabolic steroids and synthetic hormones in meat by freezing-lipid filtration, solid-phase extraction and gas chromatography-mass spectrometry.
Estradiol, testosterone, progesterone, zeranol and diethylstilbestrol including estradiol metabolites were determined simultaneously in meat. Extraction of growth hormones was carried out byExpand
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Identification of structurally diverse alkaloids in Corydalis species by liquid chromatography/electrospray ionization tandem mass spectrometry.
RATIONALE Alkaloids with significant therapeutic effects are the main active constituents of Corydalis (C.) species. There are several kinds of alkaloids in C. species associated with diverseExpand
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Monoindole Alkaloids from a Marine Sponge Spongosorites sp.
Seven (1–7) monoindole derivatives were isolated from the MeOH extract of a marine sponge Spongosorites sp. by bioactivity-guided fractionation. The planar structures were established on the basis ofExpand
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Determination of organochlorine pesticides in sediment using graphitized carbon black solid-phase extraction and gas chromatography/mass spectrometry.
An analytical method for the determination of organochlorine pesticides (OCPs) in sediment samples involves ultrasonic extraction, solid-phase extraction (SPE), gas-chromatographyExpand
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Anti-inflammatory sesquiterpenoids from a sponge-derived Fungus Acremonium sp.
In the course of our search for bioactive metabolites from a sponge-derived fungus Acremonium sp., new sesquiterpenoids (1-4) were isolated along with known derivatives by bioactivity-guidedExpand
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Anti-inflammatory constituents of the red alga Gracilaria verrucosa and their synthetic analogues.
A chemical study on the anti-inflammatory components of the red alga Gracilaria verrucosa led to the isolation of new 11-deoxyprostaglandins ( 1- 4), a ceramide ( 5), and a C 16 keto fatty acid ( 6),Expand
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Bisindole alkaloids of the topsentin and hamacanthin classes from a marine sponge Spongosorites sp.
Seven new (1 and 3-8) and seven known (2 and 9-14) bisindole alkaloids of the topsentin and hamacanthin classes were isolated from the MeOH extract of a marine sponge Spongosorites sp. byExpand
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Cytotoxic sterols and saponins from the starfish Certonardoa semiregularis.
Eleven new polyhydroxysterols (1-11) and eight new saponins (12-19) were isolated from the brine shrimp active fraction of the starfish Certonardoa semiregularis. The structures were determined onExpand
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Comprehensive profiling analysis of bioamines and their acidic metabolites in human urine by gas chromatography/mass spectrometry combined with selective derivatization.
A comprehensive analytical method was developed for the profiling of biogenic amines in human urine using GC/MS in SIM mode. Biogenic amines and their acidic metabolites were converted into theirExpand
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