Results 11 to 20 of about 128 (98)

Regioselective synthesis of heterocyclic N-sulfonyl amidines from heteroaromatic thioamides and sulfonyl azides

open access: yesBeilstein Journal of Organic Chemistry, 2020
N-Sulfonyl amidines bearing 1,2,3-triazole, isoxazole, thiazole and pyridine substituents were successfully prepared for the first time by reactions of primary, secondary and tertiary heterocyclic thioamides with alkyl- and arylsulfonyl azides.
Vladimir Ilkin   +7 more
doaj   +1 more source

Modern chemical disinfectants and antiseptics. Part I

open access: yesЖурнал органічної та фармацевтичної хімії, 2021
Aim. To generalize and systematize information on the properties of modern chemical disinfectants and antiseptic agents (DA and AA). Results and discussion.
Vasyl M. Britsun   +3 more
doaj   +1 more source

Principais métodos de síntese de amidinas

open access: yesQuímica Nova, 2006
The amidine functional group is found in a wide range of natural products and is biologically active against several pathogens. In addition, amidines have long been regarded as useful intermediates in the synthesis of heterocyclic compounds. Consequently,
Maurício Silva dos Santos   +2 more
doaj   +1 more source

Biological Activity of Newly Synthesized Benzimidazole and Benzothizole 2,5-Disubstituted Furane Derivatives

open access: yesMolecules, 2021
Newly designed and synthesized cyano, amidino and acrylonitrile 2,5-disubstituted furane derivatives with either benzimidazole/benzothiazole nuclei have been evaluated for antitumor and antimicrobial activity.
Livio Racané   +9 more
doaj   +1 more source

Synthesis and Biological Evaluation of Amidinourea Derivatives against Herpes Simplex Viruses

open access: yesMolecules, 2021
Current therapy against herpes simplex viruses (HSV) relies on the use of a few nucleoside antivirals such as acyclovir, famciclovir and valacyclovir. However, the current drugs are ineffective against latent and drug-resistant HSV infections.
Anita Toscani   +6 more
doaj   +1 more source

Hypotheses for synthesis of novel chiral beta-amino-beta-lactams through amidines

open access: yesResults in Chemistry, 2021
Synthesis of new beta-lactams is an attractive field because some of these types of molecules are biologically active. The design and preparation of C4-nitrogen-substituted beta-lactams are not known.
Bimal Krishna Banik, Alberto Boretti
doaj  

Copper-Catalyzed One-Pot Synthesis of N-Sulfonyl Amidines from Sulfonyl Hydrazine, Terminal Alkynes and Sulfonyl Azides

open access: yesMolecules, 2021
N-Sulfonyl amidines are developed from a Cu-catalyzed three-component reaction from sulfonyl hydrazines, terminal alkynes and sulfonyl azides in toluene at room temperature.
Yu Zhao   +3 more
doaj   +1 more source

Preclinical in vitro screening of newly synthesised amidino substituted benzimidazoles and benzothiazoles

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2021
Newly synthesised benzimidazole/benzotiazole derivatives bearing amidino, namely 3,4,5,6-tetrahydropyrimidin-1-ium chloride, substituents have been evaluated for their potential antitumor activity in vitro.
Livio Racané   +6 more
doaj   +1 more source

Susceptibility of Amblyomma sculptum, Vector of Rickettsia rickettsii, Ticks from a National Park and an Experimental Farm to Different Synthetic Acaricides

open access: yesPathogens, 2023
Amblyomma sculptum is a relevant tick species from a One Health perspective, playing an important role as a vector of Rickettsia rickettsii, the main agent of spotted fever rickettsiosis in Brazil. In this study, we evaluated the susceptibility of two A.
Ennya Rafaella Neves Cardoso   +17 more
doaj   +1 more source

Iron-catalyzed [4 + 2] annulation of amidines with α,β-unsaturated ketoxime acetates toward 2,4,6-trisubstituted pyrimidines

open access: yesGreen Synthesis and Catalysis, 2023
An iron-catalyzed [4 ​+ ​2] annulation of amidines with α,β-unsaturated ketoxime acetates is described. This strategy employs amidines as CN units and provides a new protocol for the construction of 2,4,6-trisubstituted pyrimidines under batch and ...
Qinghuan Wu   +10 more
doaj  

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