Results 21 to 30 of about 6,045 (297)

Readily Available Chiral Benzimidazoles-Derived Guanidines as Organocatalysts in the Asymmetric α-Amination of 1,3-Dicarbonyl Compounds

open access: yesMolecules, 2017
The synthesis and the evaluation as organocatalysts of new chiral guanidines derived from benzimidazoles in the enantioselective α-amination of 1,3-dicarbonyl compounds using di-t-butylazodicarboxylate as aminating agent is herein disclosed.
Llorenç Benavent   +3 more
doaj   +1 more source

Identification of Bis-Cyclic Guanidines as Antiplasmodial Compounds from Positional Scanning Mixture-Based Libraries

open access: yesMolecules, 2019
The screening of more than 30 million compounds derived from 81 small molecule libraries built on 81 distinct scaffolds identified pyrrolidine bis-cyclic guanidine library (TPI-1955) to be one of the most active and selective antiplasmodial libraries ...
David L. Perry   +5 more
doaj   +1 more source

Synthesis of an advanced intermediate of alfa-alloenduracididine from allylglycine

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
α-Alloenduracididine, 3-(2-amino-4,5-dihydro-1Himidazole-4-yl)-2-aminopropionic acid)1 and its diastereoisomer, enduracididine 2, are two nonproteinogenic amino acids isolated in 1968 from Streptomyces fungicidicus as part of a cyclopeptide the ...
Silvia Helena Cardoso   +3 more
doaj   +1 more source

An Expeditious and Greener Synthesis of 2-Aminoimidazoles in Deep Eutectic Solvents

open access: yesMolecules, 2016
A high-yield one-pot two-step synthesis of 2-aminoimidazoles (2-AI), exploiting an under-air heterocyclodehydration process between α-chloroketones and guanidine derivatives, and using deep eutectic solvents (DESs) as nonconventional, “green” and ...
Martina Capua   +6 more
doaj   +1 more source

X-ray Structure of Eleven New N,N′-Substituted Guanidines: Effect of Substituents on Tautomer Structure in the Solid State

open access: yesCrystals
Guanidine-containing molecules are an interesting class of compounds within both medicinal and material sciences. Having knowledge of their tautomerism is key in designing guanidines that interact with biological and chemical receptors.
Vijayaragavan Elumalai   +6 more
doaj   +1 more source

Crystal structure of 1,2-bis(2,6-dimethylphenyl)-3-phenylguanidine

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C23H25N3, the dihedral angles between the planes of the benzene ring and the two substituent dimethylphenyl rings are 60.94 (7)° and 88.08 (7)°, and the dihedral angle between the planes of the two dimethylphenyl rings is 58.01 (7)°
Hongfei Han, Zhiqiang Guo, Xuehong Wei
doaj   +1 more source

One-pot synthesis of dihydropyrimidines via eco-friendly phosphorus derivatives catalysis

open access: yesJournal of Saudi Chemical Society, 2022
A straightforward, cost effective and eco-friendly protocol for the Biginelli reaction relying on the use of readily available hypophosphorous acid is presented.
Zakaria Moutaoukil   +2 more
doaj   +1 more source

Synthesis of guanidines 19a-d.

open access: yes, 2018
Synthesis of guanidines 19a-d.
Črtomir Podlipnik (4899181)   +5 more
core   +1 more source

Biological Effects of Novel Synthetic Guanidine Derivatives Targeting Leishmania (Viannia) braziliensis

open access: yesMolecules
Leishmaniasis remains an important neglected tropical disease, and current treatments are limited by toxicity, resistance, and low bioavailability. In this study, novel guanidine derivatives were evaluated through an integrated approach, combining in ...
Geovane Dias-Lopes   +8 more
doaj   +1 more source

Novel Guanidine Compound against Multidrug-Resistant Cystic Fibrosis-Associated Bacterial Species

open access: yesMolecules, 2018
Chronic pulmonary infection is a hallmark of lung disease in cystic fibrosis (CF). Infections dominated by non-fermentative Gram-negative bacilli are particularly difficult to treat and highlight an urgent need for the development of new class of agents ...
Aamer Saeed   +5 more
doaj   +1 more source

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