Acetic acid-catalyxed cleavage of proanthocyanidins in the preaeace of phloroglucinol gives a series of 2R procyanidlnand prodelphfnidin-phIoroglucino~ adducta together with a novel 2s skis derivative implicating cleavage of the pyran ring and subsequent imersion of stereochemistry at C&. These Bavan4-phloroglucinoi adducta also suffer dehydration to producb with novel fused dihydro&ozopyrandih...

Secondary wall thickenings in tracheary elements were specifically stained by incubation of Arabidopsis and maize in Silver Stain Plus (Bio-Rad) staining solution, after pretreatment with SDS and ethanol solution. Scanning electron microscopic analysis of sections of celery revealed that silver particles were deposited on the secondary wall thickenings, indicating that the staining was due to t...

work in the synthesis of podand molecules6), the present paper describes the preparation of certain podand-type trimers of cephalosporin antibiotics (Scheme 1 ). As the central block of the target trimers the tricarboxylic acid 3 was employed, which was obtained by the alkylation of phloroglucinol (1) with methyl bromoacetate and subsequent alkaline hydrolysis. The tert-butyl esters of 7-aminoc...

Hypericum sampsonii Hance (Clusiaceae) is a folk medicine used in Taiwan to treat blood stasis, relieve swelling, and as an anti-hepatitis drug. Two new polyprenylated phloroglucinol derivatives, hypersampsone R (1) and hypersampsone S (2), and a known prenylated benzophenone, hyperibone K (3) were isolated from the aerial parts of H. sampsonii. Their structures were determined by extensive 1D ...

Clusia nemorosa has been widely used in folk medicine to treat various ailments, including headaches and inflammation. Investigation of the fruits of Clusia nemorosa (Clusiaceae) led to the isolation and characterization of a new phloroglucinol derivative, named 6S,8S,28S-nemorosic acid (1), together with seven known compounds: friedelin (2), β-sitosterol (3), stigmasterol (4), β-sitosterol gly...

Cholesterol is determined by taking advantage of the fact that the digitonin moiety of cholesteryl digitonide is a glycoside containing in its molecular structure one molecule of xylose and four molecules of galactose, and therefore reacts with a sugar reagent, such as phloroglucinol in acid solution, to form a stable color complex yielding quantitative results when measured spectrophotometrica...

Ecklonia cava (EC) is a natural material commonly used to decrease swelling, allergy, cancer, and sleep issues. Using EC has been reported regulate hormones during ovarian failure in an aromatase inhibition rodent model. The aim of this study was investigate EC’s benefits on ovariectomized female mice. Hormone replacement therapy beneficial menopause, but the risk side effects increases. In pre...