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A New Guaianolide-type Sesquiterpenoid and Xanthine Oxidase Inhibitory Activity from Chrysanthemum sinense Flowers
The ethanol extract of Chrysanthemum sinense Sabine, Asteraceae, flowers was found to inhibit xanthine oxidase with a IC 50 value of...
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New autophagy-modulating lanostane-type triterpenoids from a hallucinogenic poisonous mushroom Gymnopilus orientispectabilis
Gymnopilus orientispectabilis , also known as “big laughter mushroom,” is a hallucinogenic poisonous mushroom that causes excessive laughter upon...
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Artemongolins A–K, undescribed germacrane-guaiane sesquiterpenoid dimers from Artemisia mongolica and their antihepatoma activities
Artemongolins A – K ( 1–11 ), which are undescribed sesquiterpenoid dimers, were obtained from Artemisia mongolica and characterized through...
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Four New Prenylated Flavonoids from the Fruits of Sinopodophyllum hexandrum
Four new prenylated flavonoids, sinoflavonoids NF–NI ( 1 – 4 ), were isolated from the fruits of Sinopodophyllum hexandrum by different chromatographic...
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Bioprospecting Prenyl Flavanones from Dalea boliviana: Structural Insights and Antifungal Properties Against Azole-Resistant Candida albicans
Prenyl flavonoids are natural compounds with a relatively narrow distribution in plants with particular structural and pharmacological properties. A...
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A New Coumarin from the Bark of Cryptocarya bracteolata
Isolation of compounds from the bark of Cryptocarya bracteolata yielded a new coumarin, 6,7,8-trimethoxy-3,4-dihydrocoumarin. The structure of the...
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A Novel Compound from the Bark of Diospyros lotus and their Urease Inhibitory Activity
One novel dimeric naphthoquinone, 1′,4′-dihydroxy-5,8-dimethoxy-11,11′-dimethyl-[7,3′-binaphthalene]-1,4,5′,8′-tetraone, was isolated from the...
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A Novel Artemisinin-Derived Sesquiterpene from Bacopa gratioloides Volatile Oil by Sustainable and Enhanced Procedures
Bacopa gratioloides (Cham.) Chodat & Hassl., Plantaginaceae, is an aquatic species underexplored and found in the hostile biome Chaco, Brazil. In...
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Isolation, structure elucidation, total synthesis, and biosynthesis of dermazolium A, an antibacterial imidazolium metabolite of a vaginal bacterium Dermabacter vaginalis
Dermabacter vaginalis is a human-derived bacterium isolated from vaginal fluid of a Korean female in 2016. Although several human-related species in Dermabacter...
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Isoindolin-1-ones from the stems of Nicotiana tabacum and their antiviral activities
In previous studies, several isoindolin-1-one analogs that exhibited significant anti-tobacco mosaic virus (anti-TMV) activities were isolated from Nic...
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A New 27-Norcucurbitane Triterpenoid from the Fruits of Momordica charantia var. abbreviata
A new 27-norcucurbitane triterpenoid, 5 β ,19-epoxy-3 β -hydroxy-19( R )-methoxy-27-norcucurbita-6,23( E )-dien-25-one ( 1 ), was isolated from the fruits of Mom...
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Anti-inflammatory Clerodane Dinorditerpenoids from the Tinospora sinensis Leaves
Using various chromatographic methods, one new clerodane dinorditerpenoid, tinosinodane, and fourteen known compounds, tinosposinenside C,...
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Aromatic Compounds from Malus rockii and Their Lipid-Lowering Activities
A new dibenzofuran, 2-hydroxy-4,5-dimethoxydibenzofuran, together with seven known aromatic compounds 2-hydroxy-4-methoxydibenzofuran,...
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A Cucurbitane Aldehyde from the Fruit Pulp of Momordica charantia
A cucurbitane triterpenoid, 7 β -butoxy-3 β -hydroxy-25-methoxycucurbita-5,23( E )-dien-19-al ( 1 ), was isolated from the fruit pulp of Momordica charantia....
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Structures, biomimetic synthesis, and anti-SARS-CoV-2 activity of two pairs of enantiomeric phenylpropanoid-conjugated protoberberine alkaloids from the rhizomes of Corydalis decumbens
(±)-Decumicorine A ( 1 ) and (±)- epi -decumicorine A ( 2 ), two pairs of enantiomeric isoquinoline alkaloids featuring a novel phenylpropanoid-conjugated...
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Cytotoxic Isopimarane Diterpenoids from Kaempferia koratensis Rhizomes
Two new isopimarane diterpenoids, koratanes A and B, were identified from the rhizomes of Kaempferia koratensis Picheans., Zingiberaceae, together...
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Sucrose Diester of Aryldihydronaphthalene-Type Lignan with Anti-inflammatory Activity from Heliotropium angiospermum
A new lignan (3a → 9′:6a → 9-[(7′ S ,8′ R )-4,4′-dihydroxy-3,3′,5,5′-tetramethoxy-2,7′-cycloligna-7-en-9,9′dicarbonyl]-6b-( p -coumaroyl) sucrose) was...
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Cyanides from the Seeds of Sinapis alba
A phytochemical investigation of the seeds of Sinapis alba L., Brassicaceae, resulted in the isolation of two undescribed cyanide compounds,...
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Clerodane furanoditerpenoids from the stems of Tinospora sinensis
One new clerodane-type furanoditerpenoid tinosinoid A ( 1 ) and nine new nor-clerodane analogs tinosinoids B–J ( 2 − 10 ) have been isolated from the stems...
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Microbial Transformation of Azorellane and Mulinane Diterpenoids
Microbial transformation is an alternate strategy to obtain novel derivatives from natural products using whole cells or enzymes because of their...
