1,700+ technical articles by Aladdin Scientific's scientists on reagent selection, reaction mechanisms, assay design and formulation. New every week.
Pyridines and piperidines are widely found in pharmaceuticals, natural products, and other biologically active molecules. Pyridine dearomatization enables stable, readily available aromatic heterocycles to be used directly to form new functional groups and stereocenters while reducing ring ...
Serotonin (5-hydroxytryptamine, 5 HT) has a typical tryptamine structure: an ethylamine side chain is attached at the C3 position of the indole ring, and a hydroxyl group is present at C5. The antimigraine drug sumatriptan retains this indole–ethylamine scaffold while extending the C5 position ...
Neutrophils contain numerous effector proteins involved in host defense, including MPO, NE, Cathepsin G, PR3, BPI, Azurocidin, Lactoferrin, and Lysozyme. In human neutrophils, HNPs are also prominent α-defensin effectors. These proteins cooperate in pathogen clearance, whereas their persistent ...
p53 is a central transcriptional regulatory protein in the tumor-suppressor network. Its functions extend beyond DNA damage responses, cell-cycle arrest, and apoptosis to amino acid metabolism, redox homeostasis, and lipid oxidation. Ferroptosis is a form of regulated cell death driven by ...
2-Oxabicyclo[2.1.1]hexane (2-oxa-BCH) is a rigid, sp³-rich, oxygen-containing bicyclic scaffold. Based on crystallographic structures, a 2020 study proposed that 1,4-disubstituted 2-oxa-BCH could mimic meta-disubstituted benzene, although the corresponding biological activity had not yet been ...
Carbohydrate oxidases selectively oxidize glucose, galactose, and other sugars, accompanied by H₂O₂ production, oxygen consumption, or electron transfer. Different carbohydrate oxidases exhibit distinct substrate ranges and regioselectivities, acting on positions such as C1, C2, or C6 of the ...
Pharmacophores such as boronic acids, cyclic boronic acids, and benzoxaboroles share a common coordination-chemical feature: the boron center can interconvert between a three-coordinate, approximately trigonal-planar state and a four-coordinate, approximately tetrahedral state. Three-coordinate ...
Aryl C–N bonds are widely found in pharmaceuticals, agrochemicals, and functional molecules. Transition-metal-catalyzed amination reactions such as Buchwald–Hartwig amination typically employ aryl halides or pseudohalides as aryl electrophiles, whereas classical nucleophilic aromatic ...
The molecular formula of parent coumarin is C₉H₆O₂, and its relative molecular mass is 146.14. According to the 2H-chromen-2-one numbering system, the endocyclic oxygen atom is at position 1, the lactone carbonyl carbon is at position 2, and C3 and C4 form a double bond; the ...
