The activity of highly purified bovine aortic lysyl oxidase against an insoluble aortic elastin substrate is inhibited by lysine, nonpeptidyl derivatives of lysine, P-aminopropionitrile (BAPN), and aliphatic monoand diamines. Inhibition requires the presence of a primary amino function. Although other stereochemical requirements for inhibition are not unusually rigid, inhibition is sensitive to...

This paper reports on an ATR-FTIR spectroscopic investigation of the CO(2) absorption characteristics of a series of heterocyclic diamines: hexahydropyrimidine (HHPY), 2-methyl and 2,2-dimethylhexahydropyrimidine (MHHPY and DMHHPY), hexahydropyridazine (HHPZ), piperazine (PZ) and 2,5- and 2,6-dimethylpiperazine (2,6-DMPZ and 2,5-DMPZ). By using in situ ATR-FTIR the structure-activity relationsh...

We present herein the catalytic hydrogenation of various urea derivatives to amines and methanol. The reaction is catalyzed by a ruthenium or an iridium Macho pincer complex produces amine methanol in very good excellent yields. Moreover, we also expand this concept demonstrate first example hydrogenative depolymerization polyureas produce diamines moderate

In this study, nanosheet g–C 3 N 4 –H 2 was prepared by thermal exfoliation of bulk g-C under hydrogen. A series Ru/g–C catalysts with Ru species supported on the were synthesized via ultrasonic assisted impregnation-deposition method. Ultrafine nanoparticles (<2 nm) highly dispersed . Strong interaction due to Ru-N x coordination facilitated uniform distribution species. Meanwhile, involvement...

Two different first-principles methods, one based on density functional theory combined with Green’s functions and the other on a configuration interaction method, are used to calculate the electronic transport properties of alkane and silane chains terminated by amine end groups in metal-molecule-metal junctions. The lowvoltage conductance is found to decay exponentially with increasing length...

Ring opening of aziridinium ions with nitrogen nucleophiles was applied to the highly efficient synthesis of optically active vicinal diamines and diethylene triamine pentaacetic acid (DTPA) analogues as potential magnetic resonance imaging (MRI) contrast enhancement agents. The synthetic method features a column-free isolation of the regiospecific and stereospecific nucleophilic substitution p...

A series of new biosynthetic derivatives of tallysomycins A and B were obtained by precursor amine-feeding fermentation. Certain diamines were incorporated into tallysomycins as the terminal amine moiety affording two classes of biosynthetic derivatives, with or without the Beta-lysine moiety in the subterminal position. Among 21 derivatives prepared, tallysomycin S10b was selected for further ...