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Cu-Catalyzed Multicomponent Reaction of Arylhydrazines with β-Ketoesters and TBN: One-Pot Access to -Aryl 1,2,3-Triazole-1-Oxides.
J Org Chem
December 2024
Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India.
We report a copper-catalyzed one-pot, multicomponent strategy for the convenient synthesis of -aryl 1,2,3-triazole-1-oxides using arylhydrazines, β-ketoesters, and -butyl nitrite. This mild and simple reaction proceeds in an atom-economic manner with broad substrate scope, affording a variety of -aryl 1,2,3-triazole-1-oxide derivatives. Other salient features of the reaction are good functional group tolerance, scalability, and product diversification.
View Article and Find Full Text PDFAssessment of pheniramine in alternative biological matrices by liquid chromatography tandem mass spectrometry.
Forensic Sci Med Pathol
March 2024
Clinical and Forensic Toxicology Department, Chughtai Healthcare, Lahore, Pakistan.
Pheniramine is an over-the-counter antihistamine drug. Its accessibility and low cost made it more popular among drug abusers in Pakistan. In this study, pheniramine was quantified in both conventional and alternative specimens of twenty chronic drug abusers, aged 16-50 years, who were positive for pheniramine in comprehensive toxicological screening for drugs by gas chromatography with mass spectral detection in positive electron impact mode.
View Article and Find Full Text PDFRising CA-125 (Cancer Antigen 125) Levels: Cancer Recurrence or a Vaccine Reaction?
Cureus
February 2023
Internal Medicine, University of Maryland Capital Region Health, Largo, USA.
Cancer antigen 125 (CA-125) is a transmembrane glycoprotein, and it is known to be an essential biomarker in detecting treatment response and recurrence of ovarian cancer. It may also be used in monitoring colorectal cancer. It tends to rise in states of inflammation.
View Article and Find Full Text PDFIodonium ylides: an emerging and alternative carbene precursor for C-H functionalizations.
Org Biomol Chem
December 2022
Department of Chemical Sciences National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, Telangana, India.
The metal-catalyzed successive activation and functionalization of arene/heteroarene is one of the most fundamental transformations in organic synthesis and leads to privileged scaffolds in natural products, pharmaceuticals, agrochemicals, and fine chemicals. Particularly, transition-metal-catalyzed C-H functionalization of arenes with carbene precursors metal carbene migratory insertion has been well studied. As a result, diverse carbene precursors have been evaluated, such as diazo compounds, sulfoxonium ylides, triazoles, .
View Article and Find Full Text PDFGenomic analysis of arginine vasopressin gene in riverine buffalo reveals its potential association with silent estrus behavior.
Mol Biol Rep
October 2022
State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 530005, Nanning, China.
Background: Poor estrus expression behavior causes suboptimal reproductive efficiency through poor conception rate. Various signaling pathways are involved in estrus expression but arginine vasopressin (AVP) gene with oxytocin predominantly regulates estrus behavior. This study aimed to perform genomic characterization and evolutionary dynamics of AVP gene through association testing of the novel polymorphic loci and comparative genomic analysis to explore the potential effect of AVP gene on estrus behavior of Nili-Ravi buffaloes.
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