In the title compound, C5H4BrNO, there are two mol-ecules in the asymmetric unit that are related by a pseudo-inversion center. The two independent mol-ecules are approximately planar, with an observed (ring-ring) angle of 5.49 (13)°. The crystal structure exhibits a herringbone pattern with the zigzag running along the b-axis direction. The least-squares plane containing the rings of both asym...

Energetic materials (explosives, propellants, and pyrotechnics) are used extensively for both civilian and military applications and the development of such materials, particularly in the case of energetic salts, is subject to continuous research efforts all over the world. This Review concerns recent advances in the syntheses, properties, and potential applications of ionic salts based on tetr...

BACKGROUND Nitrite (NO2) is a physiologic source of nitric oxide and protects against ischemia-reperfusion injuries. We hypothesized that nitrite would be protective in a rat model of ventilator-induced lung injury and sought to determine if nitrite protection is mediated by enzymic catalytic reduction to nitric oxide. METHODS Rats were anesthetized and mechanically ventilated. Group 1 had lo...

An enzymatic system which reduces nicotinamide N-oxide to nicotinamide was isolated from hog liver and purified about 280-fold. The reduction is dependent on the presence of reduced diphosphopyridine nucleotide or a low molecular weight constituent found in boiled liver supernatant. The two cofactors appear to be involved in the expression of two distinct enzymatic activities. Evidence has been...

THE TITLE COMPOUND (SYSTEMATIC NAME 2-{2-[4-(dibenzo[b,f][1,4]thia-zepin-11-yl)piperazin-1-yl 1-oxide]eth-oxy}ethanol-fumaric acid (2/1)), C(21)H(25)N(3)O(3)S·0.5C(4)H(4)O(4), is one of the oxidation products of quetiapine hemifumaric acid. In the tricyclic fragment, the central thia-zepine ring displays a boat conformation and the benzene rings are inclined to each other at a dihedral angle of...

In the mol-ecule of the title compound, C(6)H(6)BrNO, the methyl C and oxide O atoms lie in the pyridine ring plane, while the Br atom is displaced by 0.103 (3) Å. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.

Norris and Benoit (1) provided ‘good evidence that injected trimethylamine is converted in the rat to its N-oxide and excreted in the urine. Other mammals have been shown to have the ability to effect the same reaction (2, 3). In a preliminary communication (4), we have reported that hog liver microsomes will catalyze the oxidation of trimethylamine in vitro. The additional requirement for redu...

The title compound, C(11)H(13)NO(4), contains a nitrone group, C=N-O-R, the geometry of which shows a Z configuration with near planarity (r.m.s. deviation = 0.0787 Å) around the C=N double bond. An intra-molecular C-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal packing, mol-ecules are linked into R(2) (2)(12) dimers and R(2) (2)(14) rings via C-H⋯O inter-molecular hydrogen bonds.

In the title compound, C(16)H(19)NOS, the durene ring and the oxopyridyl ring form a dihedral angle of 82.26 (7)°. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds, weak C-H⋯π inter-actions and π-π inter-actions [centroid-centroid distance of 3.4432 (19) Å], together with intra-molecular S⋯O [2.657 (2) Å] short contacts.