Results 71 to 80 of about 620,439 (167)

Scientific opinion on Flavouring Group Evaluation 313, (FGE.313): α,β‐unsaturated 3(2H)‐furanone derivatives from chemical group 13

open access: yesEFSA Journal, 2016
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of EFSA was requested to evaluate three flavouring substances, 2,5‐dimethyl‐4‐ethoxyfuran‐3(2H)‐one [FL‐no: 13.117], 2,5‐dimethylfuran‐3(2H)‐one [FL‐no: 13.119] and 4‐Acetyl‐2 ...
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Ethnopharmacological Evaluation of a Wild Ecotype of Syzygium cumini (L.) Skeels (Jamoya) Fruit

open access: yesChemistry &Biodiversity, Volume 23, Issue 8, August 2026.
The phytochemical and biological activity of Syzygium cumini (ecotype) fruit pulp and seed extracts using GC‐MS, UHPLC‐QTOF‐MS, and antidiabetic potential. ABSTRACT The wild ecotype of Jamun (Syzygium cumini) is known for its inedible fruits that are not yet explored for their bioactive potential. The present study assesses the ethnopharmacological and
Ritu Sharma   +4 more
wiley   +1 more source

Synthesis of azido derivatives of mucobromic acid

open access: yesBulletin of the Chemical Society of Ethiopia, 2013
Mucobromic acid is a highly reactive multicentered molecule. It was converted to its corresponding but unstable diazido derivative by reaction with two equivalents of sodium azide.
N. Mbebe, W. Masamba, N. D. Jumbam
doaj  

Effects of natural and chemically synthesized furanones on quorum sensing in Chromobacterium violaceum

open access: yesBMC Microbiology, 2004
Background Cell to cell signaling systems in Gram-negative bacteria rely on small diffusible molecules such as the N-acylhomoserine lactones (AHL). These compounds are involved in the production of antibiotics, exoenzymes, virulence factors and biofilm ...
Brandl Helmut   +4 more
doaj   +1 more source

SilverCatalyzed Cascade Carboxylation and Cyclization of Trimethyl(2-methylenebut-3-yn-1-yl)silane Derivatives

open access: yes, 2015
C–C bond-forming carboxylation and cyclization of trimethyl­(2-methylenebut-3-yn-1-yl)­silane derivatives and carbon dioxide was developed. Silver catalysts and CsF promoted the reaction to afford the corresponding 2-furanone and 2-pyrone derivatives in ...
Yuta Sadamitsu (1479370)   +2 more
core   +1 more source

Trend of phytochemical composition changes of Sorbus aucuparia l. depending on the season in the conditions of the Ili Alatau [PDF]

open access: yesBrazilian Journal of Biology
This study investigates the seasonal variation in the phytochemical composition of rowan (Sorbus aucuparia L.) fruit extracts collected during the summer and autumn vegetation periods.
A. Artykbay   +6 more
doaj   +2 more sources

Wind Derivatives: Modeling and Pricing [PDF]

open access: yes, 2013
Wind is considered to be a free, renewable and environmentally friendly source of energy. However, wind farms are exposed to excessive weather risk since the power production depends on the wind speed, the wind direction and the wind duration.
Zapranis, Achilleas   +1 more
core   +1 more source

Characterization Of Selective TRPM8 Ligands And Their Structure Activity Response (S.A.R) Relationship

open access: yesJournal of Pharmacy & Pharmaceutical Sciences, 2010
PURPOSE: Transient receptor potential melastatin-8 (TRPM8) is an ion channel expressed extensively in sensory nerves, human prostate and overexpressed in a variety of cancers including prostate, breast, lung, colon and skin melanomas.
Muhammad Azhar Sherkheli   +5 more
doaj   +1 more source

Mechanism of electrochemical reduction of 5-thio derivatives of 2(5H)-furanone

open access: yes, 2019
© 2019, Springer Science+Business Media, Inc. The anionoid elimination of the substituent from position 5 of the lactone ring is the predominant pathway of electrochemical reduction of 5-arylsulfanyl- and 5-arylsulfonyl-3,4-dichloro-2(5H)-furanones in ...
Chmutova G.   +3 more
core  

In Vitro Structure−Activity Relationship and in Vivo Studies for a Novel Class of Cyclooxygenase-2 Inhibitors:  5-Aryl-2,2-dialkyl-4-phenyl-3(2H)furanone Derivatives

open access: yes, 2016
5-Aryl-2,2-dialkyl-4-phenyl-3(2H)furanone derivatives were studied as a novel class of selective cyclooxygenase-2 inhibitors with regard to synthesis, in vitro SAR, antiinflammatory activities, pharmacokinetic considerations, and gastric safety.
Joo Hyun Moh (2725036)   +14 more
core   +1 more source

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