Results 101 to 110 of about 7,977,034 (276)

Enantioselective formal synthesis of (−)-ovalicin using quinic acid as a chiral template [PDF]

, 1998
The key intermediate 18 for the synthesis of (-)-ovalicin was synthesized using (-)-quinic acid as the chiral source, through a series of stereocontrolled and efficient chemical reactions, thus establishing a new, formal synthesis of the natural target ...
BENETTI, Simonetta, Paolo Marchetti, POLLINI, Gian Piero, ZANIRATO, Vinicio, Vinicio Zanirato, BARCO, Achille, Carmela De Risi, Achille Barco, Gian P. Pollini, DE RISI, Carmela, MARCHETTI, Paolo, Simonetta Benetti   +11 more
core   +1 more source

Caffeic Acid Derivatives from Eupatorium perfoliatum L.

Molecules, 2008
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.
Andreas Hensel, Frank Petereit, Mareike Maas   +2 more
doaj   +1 more source

Ethylenediaminetetraacetic Acid and Other Dentine Bioactive Molecule‐Releasing Agents for Regenerative Endodontic Procedures: A Systematic Review

International Endodontic Journal, EarlyView.
ABSTRACT Background The bioactive molecules released from dentine are key to stem‐cell recruitment, proliferation and differentiation in regenerative endodontics. However, there is limited and conflicting information regarding current and potential agents for releasing dentine bioactive molecules for regenerative endodontic procedures.
Arwa Al‐Maswary, Xiaoxuan Deng, Haizal M. Hussaini, Lara T. Friedlander, Paul R. Cooper   +4 more
wiley   +1 more source

Image_2_Synergistic Effect of Quinic Acid Derived From Syzygium cumini and Undecanoic Acid Against Candida spp. Biofilm and Virulence.JPEG [PDF]

, 2018
In recent decades, fungal infections have incredibly increased with Candida genus as the major cause of morbidity and mortality in hospitalized and immunocompromised patients.
Subramanian Muthamil (6007346), Krishnaswamy Balamurugan (739812), Shunmugiah Karutha Pandian (472534), Boopathi Balasubramaniam (6007349)   +3 more
core   +1 more source

Characterization of acyl-quinic acids and antioxidant capacity in defective green coffee beans using LC-HRMS

Food Chemistry: X
: A significant proportion of defective green coffee beans (GCBs) are produced during the pre- and post-harvesting processes, reducing overall bean quality.
Kwan Joong Kim, Dae-Ok Kim
doaj   +1 more source

A factorial multi‐layer analysis reveals non‐additive sulfur–iron interactions shaping metabolic and transcriptional responses in durum wheat

New Phytologist, EarlyView.
Working model of S‐dependent Fe stress integration in durum wheat. S availability acts as the main factor defining the metabolic and transcriptional state of the plant, whereas Fe mainly affects the intensity of these responses. This is particularly evident for OAS, methionine, citrate and asparagine, which accumulated most strongly under combined S ...
Eleonora Coppa, Mutsumi Watanabe, Moez Maghrebi, Giulia Quagliata, Alessandro Bruschini, Rainer Hoefgen, Youry Pii, Stefano Cesco, Gianpiero Vigani, Stefania Astolfi   +9 more
wiley   +1 more source

Protecting group-free photocatalyzed O-arylation of quinic acid

Tetrahedron Green Chem
This study presents a novel and environmentally friendly approach to the preparation of quinic acid-derived esters from photocatalyzed O-arylation with haloarenes.
Miguel A. Bárbara, Nuno R. Candeias, Luis F. Veiros, Filipe Menezes, Andrea Gualandi, Pier G. Cozzi, Carlos A.M. Afonso   +6 more
doaj   +1 more source

Effect of genotype and extraction method on polyphenols content, phenolic acids, and flavonoids of olive leaves (Olea europaea L. subsp. europaea)

International Journal of Plant Based Pharmaceuticals, 2021
Polyphenol’s extraction varied according to various factors. In this study, the effect of genotype and method of polyphenols extraction were investigated using leaves of two cultivated and two wild olive varieties and four hydromethanolic extraction ...
Salma Guebebia, Khadija Ben Othman, Yassine Yahia, Mehrez Romdhane, Walid Elfalleh, Hédia Hannachi   +5 more
doaj  

Mapping the Bioenergetic Landscape of Oral Cancer Stem Cells: A Systematic Review

Oral Diseases, EarlyView.
ABSTRACT Objectives Oral squamous cell carcinoma (OSSC) remains highly lethal, with resistance largely driven by cancer stem cells (CSCs). Mitochondrial reprogramming supports CSC redox control, self‐renewal, and survival. This systematic review aimed to synthesize mitochondrial mechanisms sustaining CSCs in OSCC and evaluate their therapeutic ...
Rodrigo Elísio de Sá, Rebeca Barbosa da Rocha, Benedito dos Santos Alves, Maria Eduarda de Araujo de Carvalho, Jayane da Silva Sousa, José Delano Barreto Marinho‐Filho, Ana Jérsia Araújo   +6 more
wiley   +1 more source

Regioselectivity in the Ring Opening of Epoxides for the Synthesis of Aminocyclitols from D-(-)-Quinic Acid

Molecules, 2012
Efficient syntheses of four aminocyclitols are reported. Each synthesis is accomplished in eight steps starting from D-(-)-quinic acid. The key step involves a highly regioselective ring opening of epoxides by sodium azide.
Shu-Yu Yang, Tzenge-Lien Shih
doaj   +1 more source