scholarly journals CVI.—Derivatives of gallic acid. Part I. Synthesis of 4-hydroxy-3 : 5-dimethoxyphthalic acid

1920 ◽  
Vol 117 (0) ◽  
pp. 964-970 ◽  
Author(s):  
Rupchand Lilaram Alimchandani ◽  
Andrew Norman Meldrum
Keyword(s):  
Gallic Acid ◽  
Derivatives Of

scholarly journals Antioxidant Network Based on Sulfonated Polyhydroxyalkanoate and Tannic Acid Derivative

2021 ◽  
Vol 8 (1) ◽  
pp. 9
Author(s):  
Laura Brelle ◽  
Estelle Renard ◽  
Valerie Langlois
Keyword(s):  
Gallic Acid ◽  
Tannic Acid ◽  
Water Soluble ◽  
Gel Formation ◽  
Ene Reaction ◽  
Inorganic Cations ◽  
Medium Chain Length ◽  
Physically Crosslinked ◽  
The Stability ◽  
Derivatives Of

A novel generation of gels based on medium chain length poly(3-hydroxyalkanoate)s, mcl-PHAs, were developed by using ionic interactions. First, water soluble mcl-PHAs containing sulfonate groups were obtained by thiol-ene reaction in the presence of sodium-3-mercapto-1-ethanesulfonate. Anionic PHAs were physically crosslinked by divalent inorganic cations Ca2+, Ba2+, Mg2+ or by ammonium derivatives of gallic acid GA-N(CH3)3+ or tannic acid TA-N(CH3)3+. The ammonium derivatives were designed through the chemical modification of gallic acid GA or tannic acid TA with glycidyl trimethyl ammonium chloride (GTMA). The results clearly demonstrated that the formation of the networks depends on the nature of the cations. A low viscoelastic network having an elastic around 40 Pa is formed in the presence of Ca2+. Although the gel formation is not possible in the presence of GA-N(CH3)3+, the mechanical properties increased in the presence of TA-N(CH3)3+ with an elastic modulus G’ around 4200 Pa. The PHOSO3−/TA-N(CH3)3+ gels having antioxidant activity, due to the presence of tannic acid, remained stable for at least 5 months. Thus, the stability of these novel networks based on PHA encourage their use in the development of active biomaterials.

scholarly journals Shushe Acids A-D from Ganoderma Applanatum

2017 ◽  
Vol 12 (3) ◽  
pp. 1934578X1701200
Author(s):  
Qi Luo ◽  
Yan-Jiao Zhang ◽  
Zhi-Qiang Shen ◽  
Peng Chen ◽  
Yong-Xian Cheng
Keyword(s):  
Succinic Acid ◽  
Natural Product ◽  
Gallic Acid ◽  
Spectroscopic Methods ◽  
Fruiting Bodies ◽  
Ganoderma Applanatum ◽  
Prevention And Treatment ◽  
New Compounds ◽  
Derivatives Of ◽  
Mcf 7

Ganoderma applanatum is a fungus used for the prevention and treatment of a variety of disorders in China. In the present study, four new compounds, named shushe acids A-D (1-4), were isolated from the fruiting bodies of this species. Their structures were identified on the basis of spectroscopic methods. Compounds 1-4 are all natural product hybrids composed of derivatives of gallic acid, glycerol and succinic acid. None of the four compounds showed activity against the MCF-7 cell line.

scholarly journals VIII.—Derivatives of gallic acid

1902 ◽  
Vol 81 (0) ◽  
pp. 73-78
Author(s):  
Frederick B. Power ◽  
Frank Shedden
Keyword(s):  
Gallic Acid ◽  
Derivatives Of

Amide derivatives of Gallic acid: Design, synthesis and evaluation of inhibitory activities against in vitro α-synuclein aggregation

2020 ◽  
Vol 28 (15) ◽  
pp. 115596
Author(s):  
Li Chen ◽  
Guo-Long Huang ◽  
Ming-Huan Lü ◽  
Yun-Xiao Zhang ◽  
Ji Xu ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Design Synthesis ◽  
Amide Derivatives ◽  
Inhibitory Activities ◽  
Derivatives Of

scholarly journals Flavonoids Bearing an O-Arabinofuranosyl-(1→3)-Rhamnoside Moiety from Cladocolea Micrantha: Inhibitory Effect on Human Melanoma Cells

2012 ◽  
Vol 7 (10) ◽  
pp. 1934578X1200701
Author(s):  
Anderson C. Guimarães ◽  
Alvicler Magalhães ◽  
Marcos J. Nakamura ◽  
Antonio C. Siani ◽  
Christina Barja-Fidalgo ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Spectral Methods ◽  
Inhibitory Effect ◽  
Melanoma Cells ◽  
Human Melanoma ◽  
Human Melanoma Cells ◽  
Derivatives Of ◽  
Transwell System

Eleven known triterpenes (α-amyrin, β-amyrin, lupeol, and their respective acetates, 3- O-acetyl derivatives of betulinic, oleanolic, and ursolic acids, cycloartenol, and tirucall-7,24-dienol), two new flavonols presenting an uncommon interglycosidic O-(1→3) linkage (kaempferol 3- O-α-L-arabinofuranosyl-(1→3)-α-L-rhamnoside and quercetin 3- O-α-L-arabinofuranosyl-(1→3)-α-L-rhamnoside), β-sitosterol, stigmasterol, quercetin, and gallic acid were isolated from the Amazonian medicinal mistletoe, Cladocolea micrantha Kuijt (Loranthaceae). Their structures were established by spectral methods and eventual chromatographic comparisons. The quercetin derivative was not cytotoxic to MV3 human melanoma cells, but was able, when administered at 1 μg/mL, to promote a twofold inhibition of the migration of the cells through the transwell system when compared with paclitaxel at 5 μM.

XXIII.—Derivatives of gallic acid. Part II. Gallic acid (and the cresotic acids) and chloral

1921 ◽  
Vol 119 (0) ◽  
pp. 201-209
Author(s):  
Rupchand Lilaram Alimchandani ◽  
Andrew Norman Meldrum
Keyword(s):  
Gallic Acid ◽  
Derivatives Of ◽  
Cresotic Acids

The Chemistry of Eucalypt Kinos. IV. Eucalyptus hemiphloia Kino

1963 ◽  
Vol 16 (1) ◽  
pp. 147 ◽  
Author(s):  
WE Hillis ◽  
A Carle
Keyword(s):  
Gallic Acid ◽  
Ellagic Acid ◽  
Derivatives Of

The kino exuded by Eucalyptus hemiphloia contains (+)-hemiphloin, isohemiphloin, (-)-eudesmin, aromadendrin, kaempferol, engelitin, ellagic acid, and small amounts of gallic acid. Hemiphloin and isohemiphloin appear to be 8-hexahydroxyhexyl derivatives of naringenin.

Ester derivatives of gallic acid with potential toxicity toward L1210 leukemia cells

2008 ◽  
Vol 16 (7) ◽  
pp. 3791-3799 ◽  
Author(s):  
Claudriana Locatelli ◽  
Rober Rosso ◽  
Maria C. Santos-Silva ◽  
Camila A. de Souza ◽  
Marley A. Licínio ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Leukemia Cells ◽  
L1210 Leukemia ◽  
Potential Toxicity ◽  
Derivatives Of

Derivatives of Gallic Acid Induce Apoptosis in Tumoral Cell Lines and Inhibit Lymphocyte Proliferation

1998 ◽  
Vol 350 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Antonio Serrano ◽  
Carmen Palacios ◽  
Garbiñe Roy ◽  
Constantino Cespón ◽  
Marı́a L. Villar ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Cell Lines ◽  
Lymphocyte Proliferation ◽  
Tumoral Cell ◽  
Derivatives Of
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