345642-90-2Relevant articles and documents
Peroxyl radical clocks
Roschek Jr., Bill,Tallman, Keri A.,Rector, Christopher L.,Gillmore, Jason G.,Pratt, Derek A.,Punta, Carlo,Porter, Ned A.
, p. 3527 - 3532 (2006)
A series of peroxyl radical clocks has been developed and calibrated based on the competition between the unimolecular β-fragmentation (k β) of a peroxyl radical and its bimolecular reaction with a hydrogen atom donor (kH). These clocks are based on either methyl linoleate or allylbenzene and were calibrated directly with α-tocopherol or methyl linoleate, which have well-established rate constants for reaction with peroxyl radicals (kH-tocopherol = 3.5 × 10-6 M-1 s-1, kH-linoieate = 62 M-1 s-1). This peroxyl radical clock methodology has been successfully applied to determine inhibition and propagation rate constants ranging from 10° to 107 M-1 s-1.
An expeditious access to 5-pyrimidinol derivatives from cyclic methylglyoxal diadducts, formation of argpyrimidines under physiological conditions and discovery of new CFTR inhibitors
Renard, Brice-Lo?c,Boucherle, Benjamin,Maurin, Bruno,Molina, Marie-Carmen,Norez, Caroline,Becq, Frédéric,Décout, Jean-Luc
experimental part, p. 1935 - 1941 (2011/05/02)
In the study of previously reported modulators of CFTR chloride channels that are cyclic methylglyoxal (MG) diadducts (CMGD) to aromatic α-aminoazaheterocycles, we optimized a new expeditious one pot route for preparing in water novel aromatic polycyclic azaheterocycles and described 5-pyrimidinols antioxidants through the formation of 2-oxoaldehyde diadducts to aromatic α-aminoazaheterocycles, amidines, guanidines and thiourea. In regard to the importance as biomarkers of diabetic complications of the 5-pyrimidinols "argpyrimidines" formed in proteins from MG and arginine residues, we demonstrated that argpyrimidines are slowly formed under physiological conditions from CMGD to arginine derivatives according to the synthesis route described. Among the 5-pyrimidinol derivatives prepared, two polycyclic derivatives appeared to inhibit strongly the activity of CFTR channels in wt-CHO cells.
The Effect of Ring Nitrogen Atoms on the Homolytic Reactivity of Phenolic Compounds: Understanding the Radical-Scavenging Ability of 5-Pyrimidinols
Valgimigli, Luca,Brigati, Giovanni,Pedulli, Gian Franco,DiLabio, Gino A.,Mastragostino, Marina,Arbizzani, Catia,Pratt, Derek A.
, p. 4997 - 5010 (2007/10/03)
Six substituted 5-pyrimidinols were synthesized, and the thermochemistry and kinetics of their reactions with free radicals were studied and compared to those of equivalently substituted phenols. To assess their potential as hydrogen-atom donors to free r