نتایج جستجو برای: 4 caffeoy1 quinic acid

تعداد نتایج: 1924359  

Journal: :Bioorganic & medicinal chemistry letters 2013
Seung Young Lee Eunjung Moon Sun Yeou Kim Kang Ro Lee

Five new quinic acid derivatives (1-5), together with 10 known quinic acid derivatives (6-15), were isolated from the MeOH extract of Pimpinella brachycarpa (Umbelliferae). Their structures were established on the basis of spectroscopic analyses including extensive 2D NMR studies (COSY, HMQC and HMBC). Isolated compounds 1-15 were evaluated for their inhibitory activities on nitric oxide (NO) p...

2017
Heidi D. Jensen Carsten Struve Søren B. Christensen Karen A. Krogfelt

The antibacterial effect of cranberry juice and the organic acids therein on infection by uropathogenic Escherichia coli was studied in an experimental mouse model of urinary tract infection (UTI). Reduced bacterial counts were found in the bladder (P < 0.01) of mice drinking fresh cranberry juice. Commercially available cranberry juice cocktail also significantly reduced (P < 0.01) bacterial p...

2010
Masanori OGAWA Yoshihiro SUZUKI Yoko ENDO Toshihiro KAWAMOTO Fujio KAYAMA

Intake of foods and drinks containing benzoic acid influences the urinary hippuric acid (HA) concentration, which is used to monitor toluene exposure in Japan. Therefore, it is necessary to control the intake of benzoic acid before urine collection. Recently, some reports have suggested that components of coffee, such as chlorogenic, caffeic, and quinic acids are metabolized to HA. In this stud...

Journal: :Journal of agricultural and food chemistry 2003
Fernando Vallejo Francisco Tomas-Barberan Cristina Garcia-Viguera

Total aliphatic and indole glucosinolates, phenolic compounds (flavonoids and hydroxycinnamoyl derivatives), and vitamin C contents were evaluated in freshly harvested broccoli (Brassica oleracea L., var. italica, cv. Marathon) inflorescences. These were film-wrapped and stored for 7 days at 1 degrees C to simulate a maximum period of commercial transport and distribution. After cold storage, i...

Journal: :Microbiological reviews 1985
N H Giles M E Case J Baum R Geever L Huiet V Patel B Tyler

Journal: :Planta medica 2001
E I Hwang B T Ahn H B Lee Y K Kim K S Lee S H Bok Y T Kim S U Kim

In the course of search for potent inhibitors of chitin synthase II from natural resources, seven tannins and related compounds were isolated from the aerial part of Euphorbia pekinensis and identified as gallic acid (1), methyl gallate (2), 3-O-galloyl-(-)-shikimic acid (3), corilagin (4), geraniin (5), quercetin-3-O-(2"-O-galloyl)-beta-D-glucoside (6), and kaempferol-3-O-(2"-O-galloyl)-beta-D...

Journal: :The British journal of nutrition 1982
A K Martin

1. The contribution of dietary constituents to the large urinary output of benzoic acid characteristic of ruminants and some herbivores is not well understood. 2. Methods for the analysis of quinic, cyclohexanecarboxylic, benzoic, phenylacetic, 3-phenylpropionic and cinnamic acids in urine and in rumen fluids were developed. 3. The urinary output of aromatic acids by sheep given seven-rations w...

2006
M. PHILIPPE A. M. SEPULCHRE S. D. GERO

A semisynthetic aminoglycoside antibiotic 15, containing a cyclic r-amino-a-hydroxy acid, related to the 1-N-4-amino-2-hydroxybutyric acid (AHBA) side chain of butirosins and amikacin, has been prepared. Conveniently protected 3,2',6'-tris-N-tert-butoxycarbonylgentamicin C,a, (12) was condensed with the phtalimido active ester 10 to give after catalytic reduction and deprotection, the hitherto ...

Journal: :Molecules 2008
Mareike Maas Frank Petereit Andreas Hensel

From the ethyl acetate soluble fraction of a methanol/water extract of the herb Eupatorium perfoliatum L. (Asteraceae) six caffeic acid derivatives have been isolated and identified by 1D- and 2D-NMR spectroscopic data. Besides the common quinic acid derivatives 5-caffeoylquinic acid (chlorogenic acid), 3-caffeoylquinic acid (neochlorogenic acid) and 3,5-dicaffeoylquinic acid, three up to now u...

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