Sporormielones A–E, bioactive novel C–C coupled orsellinic acid derivative dimers, and their biosynthetic origin

2020 ◽  
Vol 56 (33) ◽  
pp. 4607-4610 ◽  
Author(s):  
Guo-Dong Chen ◽  
Dan Hu ◽  
Mei-Juan Huang ◽  
Jia Tang ◽  
Xiao-Xia Wang ◽  
...  
Keyword(s):  
Acid Derivative ◽  
Orsellinic Acid

Sporormielones A–E, novel C–C coupled orsellinic acid derivative dimers containing tricyclic cores with a dimethylcyclopentenone unit, were isolated from Sporormiella sp., and their plausible biosynthetic mechanism was proposed.

A New Orsellinic Acid Derivative from the Fungus Chaetomium megalocarpum

2015 ◽  
Vol 51 (1) ◽  
pp. 31-33 ◽  
Author(s):  
G.-B. Xu ◽  
G.-L. Zhang ◽  
T. Yang ◽  
J.-K. Bao ◽  
G.-Y. Li
Keyword(s):  
Acid Derivative ◽  
Orsellinic Acid

scholarly journals Structural Elucidation and Free Radical Scavenging Activity of a new o-Orsellinic Acid Derivative Isolated from the Lichen Cladonia rappii

2016 ◽  
Vol 11 (9) ◽  
pp. 1934578X1601100
Author(s):  
Tiago C.A. Lage ◽  
Lívia P. Horta ◽  
Ricardo M. Montanari ◽  
Jefferson G. Silva ◽  
Ângelo de Fátima ◽  
...  
Keyword(s):  
Acid Derivative ◽  
Reactive Nitrogen Species ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Usnic Acid ◽  
Free Radical Scavenging ◽  
Scavenging Activity ◽  
Oxygen Species ◽  
Orsellinic Acid ◽  
Ros Scavenger

Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficient ROS scavenger, exhibiting activity 3-fold higher than that of resveratrol. At the same concentration, rappidic acid scavenged 23.1% of ROS formed, demonstrating that this compound is twice as active as resveratrol. Both compounds were shown to be poor RNS scavengers.

An usnic acid derivative as new tweezer for non-covalent aromatic interaction complex

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
B Legouin ◽  
M Chollet-Krugler ◽  
S Tomasi ◽  
P Uriac ◽  
P van de Weghe
Keyword(s):  
Acid Derivative ◽  
Usnic Acid ◽  
Aromatic Interaction

Isolation and Identification of β-Glucogallin, Coumaroyl Quinic Acid Derivative, and Flavonol Triglycosides as Antioxidants from Green Tea

2020 ◽  
Vol 26 (2) ◽  
pp. 57-65
Author(s):  
Eu-Jin Ban ◽  
Ju-Hyung Kim ◽  
So-Jin Lee ◽  
Dong-Jun Lee ◽  
Jae-Hak Moon ◽  
...  
Keyword(s):  
Green Tea ◽  
Acid Derivative ◽  
Quinic Acid ◽  
Isolation And Identification

A New Benzoic Acid Derivative from Eclipta pros-trata

2010 ◽  
Vol 8 (4) ◽  
pp. 244-246 ◽  
Author(s):  
Zhi-Hua SUN ◽  
Chao-Feng ZHANG ◽  
Mian ZHANG
Keyword(s):  
Benzoic Acid ◽  
Acid Derivative ◽  
Benzoic Acid Derivative
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