Abstract A sequential one‐pot chemoenzymatic procedure for the conversion of diol 1 , easily obtained from oleic acid, into pelargonic and azelaic acids is herein described. The oxidation a mixture corresponding regioisomeric hydroxyketones was promoted by an alcohol dehydrogenase Micrococcus luteus selected after extensive screening commercial enzyme kits strain collections. stereochemistry pr...

We report the design and synthesis of a new class of fluorogenic probes based on monoamine oxidase-triggered oxidative C-O bond cleavage. The selectivity of probe P1 towards MAO-B was 22-fold higher than that towards MAO-A.

The first synthesis of cytotoxic (-)-taiwaniaquinone A and (-)-taiwaniaquinone F has been achieved through the intramolecular aldol condensation of a ketoaldehyde and the oxidative cleavage of an isopropylidene ketal.

A reaction-based strategy exploiting cobalt-mediated oxidative C-O bond cleavage affords a selective turn-on fluorescent probe for paramagnetic Co(2+) in water and in living cells.

MicroRNAs (miRNAs) are a class of regulatory RNAs of approximately 21 nucleotides that posttranscriptionally regulate gene expression by directing mRNA cleavage or translational inhibition. Increasing evidence points to a potential role of miRNAs in diverse physiological processes. miR398 targets two closely related Cu/Zn superoxide dismutases (cytosolic CSD1 and chloroplastic CSD2) that can de...

BACKGROUND The clinical use of cisplatin (cis-diamminedichloro-platinum II, CDDP) is highly limited by its nephrotoxicity. Although N-acetylcysteine (NAC), a thiol-containing antioxidant, has been documented to be effective in attenuating renal injury induced by CDDP, the precise mechanisms involved in its renoprotection have not been completely clarified. METHODS We investigated the effects ...

Preconditioning (PC) as a protective strategy against noxious insults can decline cell death and apoptosis. It has been approved that mitochondria play a key role in PC mechanism. The critical role of complex I (CI) in oxidative phosphorylation machinery and intracellular ROS production, particularly in the brain, accentuates its possible role in PC-induced neuroprotection. Here, differentiated...

background: it has been proposed that oxidative stress may contribute to the development of testicular abnormalities in diabetes. morus alba leaf extract (mae) has hypoglycemic and antioxidant properties. we, therefore, explored the impact of the administration of mae on steroidogenesis in diabetic rats. methods: to address this hypothesis, we measured the serum level of glucose, insulin, and f...

An efficient metal-free access to 2- and 3-phenylpyridines via oxidative coupling of acetophenones or phenylacetones with 1,3-diaminopropane has been described. The reaction involves shorter reaction time, excellent yields and a broad substrate scope. The reaction proceeds via the formation of imine, which further undergoes oxidative C-N bond cleavage, C-C bond formation and oxidation to give a...

Synthetic methods that achieve oxidative 1,2-difunctionalization of alkenes are very powerful in organic chemistry. Here we report the first examples of intermolecular Pd-catalyzed aminoacetoxylation of alkenes with phthalimide as the nitrogen source and PhI(OAc)2 as the stoichiometric oxidant and source of acetate. These reactions are highly regio- and diastereoselective, and mechanistic studi...