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Recent Advances in the Synthesis of Piperazines: Focus on C–H Functionalization

open access: yesOrganics, 2021
Piperazine ranks as the third most common nitrogen heterocycle in drug discovery, and it is the key component of several blockbuster drugs, such as Imatinib (also marketed as Gleevec) or Sildenafil, sold as Viagra.
Carolina Durand, Michal Szostak
doaj   +2 more sources

Visible Light-Mediated, Diastereoselective Epimerization of Morpholines and Piperazines to More Stable Isomers. [PDF]

open access: yesACS Catal, 2022
We report a photocatalyzed epimerization of morpholines and piperazines that proceeds by reversible hydrogen atom transfer (HAT) and provides an efficient strategy for editing the stereochemical configurations of these saturated nitrogen heterocycles ...
Shen Z   +4 more
europepmc   +2 more sources

Design, Synthesis and Biological Evaluation of Novel N-Arylpiperazines Containing a 4,5-Dihydrothiazole Ring [PDF]

open access: yesPharmaceuticals, 2023
Arylpiperazines represent one of the most important classes of 5-HT1AR ligands and have attracted considerable interests for their versatile properties in chemistry and pharmacology, leading to the research of new derivatives that has been focused on the
Giorgia Andreozzi   +14 more
doaj   +2 more sources

Alkylated Piperazines and Piperazine-Azole Hybrids as Antifungal Agents. [PDF]

open access: yesJournal of Medicinal Chemistry, 2018
The extensive use of fluconazole (FLC) and other azole drugs has caused the emergence and rise of azole-resistant fungi. The fungistatic nature of FLC in combination with toxicity concerns have resulted in an increased demand for new azole antifungal ...
Nishad Thamban Chandrika   +5 more
semanticscholar   +3 more sources

Development of Piperazine- and Oxazine-Linked Pyrimidines as p65 Subunit Binders of NF–κB in Human Breast Cancer Cells [PDF]

open access: yesBiomedicines, 2023
Nuclear factor kappa B (NF–κB) is a potential therapeutic target in breast cancer. In the current study, a new class of oxazine– and piperazine–linked pyrimidines was developed as inhibitors of NF–κB, overcoming the complexity of the oxazine structure ...
Akshay Ravish   +10 more
doaj   +2 more sources

Discovery of a novel piperazine derivative, cmp2: a selective TRPC6 activator suitable for treatment of synaptic deficiency in Alzheimer’s disease hippocampal neurons [PDF]

open access: yesScientific Reports
Alzheimer disease (AD) is characterized by progressive loss of memory. Synaptic loss is now the best correlate of cognitive dysfunction in patients with Alzheimer’s disease.
Nikita Zernov   +5 more
doaj   +2 more sources

Investigation of piperazines as human carbonic anhydrase I, II, IV and VII activators

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2018
Four human (h) carbonic anhydrase isoforms (CA, EC 4.2.1.1), hCA I, II, IV, and VII, were investigated for their activation profile with piperazines belonging to various classes, such as N-aryl-, N-alkyl-, N-acyl-piperazines as well as 2,4-disubstituted ...
Andrea Angeli   +4 more
doaj   +2 more sources

Opportunities and challenges for direct C–H functionalization of piperazines

open access: yesBeilstein Journal of Organic Chemistry, 2016
Piperazine ranks within the top three most utilized N-heterocyclic moieties in FDA-approved small-molecule pharmaceuticals. Herein we summarize the current synthetic methods available to perform C–H functionalization on piperazines in order to lend ...
Zhishi Ye, Kristen E. Gettys, Mingji Dai
doaj   +2 more sources

Harnessing unprotected deactivated amines and arylglyoxals in the Ugi reaction for the synthesis of fused complex nitrogen heterocycles [PDF]

open access: yesBeilstein Journal of Organic Chemistry
Piperazines and diazepines are examples of nitrogen heterocycles present in many marketed drugs highlighting their importance in the discovery of novel bioactive compounds.
Javier Gómez-Ayuso   +5 more
doaj   +2 more sources

Determination of Piperazine [PDF]

open access: bronzeJournal of AOAC INTERNATIONAL, 1960
Sam H Perlmutter
openalex   +3 more sources

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