نتایج جستجو برای: morpholine
تعداد نتایج: 713 فیلتر نتایج به سال:
The reaction of N-[4-(chloroacetyl)aminobenzenesulphonyl]morpholine (IV) in acetone or dimethyl-formamide with amine derivatives, 4-aminotriazoles (I,II) or sulpha drugs yielded the corresponding N-[4-(substituted glycyl)aminobenzenesulphonyl]-morpholine derivatives (V-XV). Moreover, some derivatives of N-[4-(alkoxyacetyl)aminobenzenesulphonyl]morpholine (XVI-XXI) were synthesized. The reaction...
Morpholine (NH(CH2CH2)2O) is a typical six-membered aliphatic heterocyclic compound. Herein, infrared plus vacuum ultraviolet (IR/VUV) single photon “soft” ionization spectroscopy was employed to study the structures of neutral morpholine and its monohydrated clusters. Theoretical calculations revealed that the structures containing equatorial-chair and axial-chair conformations were the most s...
A method was developed to monitor the in vivo formation of W-nitrosomorpholine. A/-Nitroso(2-hydroxyethyl)glycine, a major urinary metabolite of A/-nitrosomorpholine, was quantified as its methyl ester-trimethylsilyl ether derivative, using gas chromatography with nitrosamine-specific detection. When the method was applied to rats, the in vivo formation of, or exposure to, as little as 0.6 ut) ...
A method was developed to monitor the in vivo formation of W-nitrosomorpholine. A/-Nitroso(2-hydroxyethyl)glycine, a major urinary metabolite of A/-nitrosomorpholine, was quantified as its methyl ester-trimethylsilyl ether derivative, using gas chromatography with nitrosamine-specific detection. When the method was applied to rats, the in vivo formation of, or exposure to, as little as 0.6 ut) ...
Mn( ii ), Co( and Ni( ) morpholine 2,2′-bipyridine complexes gave potent DNA cleavage, antimicrobial antioxidant activity. Calculations support the results, with Co Ni showing better anticancer efficacy than cisplatin.
Functionalized morpholines have attracted much attention due to their potential biological activities. Despite the wide importance of morpholine derivatives in drug design of various pharmacological agents, the development of new approaches to their synthesis remains relatively unexplored. Given the low cost and easy availability of N-propargylamines, the synthesis of functionalized morphol...
Some new b-lactams bearing biologically important morpholine ring have been synthesized by acylation of amino b-lactams in the presence of morpholine-4-carbonyl chloride. These novel β-lactams were prepared under mild reaction conditions without any solvent in short reaction times. Their biological activities have been examined against microbial agents such as Staphylococcus aureus (S. aureus),...
The asymmetric unit of the title salt, C5H12N3O(+)·C3H5O3(-), contains two carboxamidinium and two ethyl carbonate ions. In the crystal, the C-N bond lengths in the central CN3 units of the cations range between 1.324 (2) and 1.352 (2) Å, indicating partial double-bond character. The central C atoms are bonded to the three N atoms in a nearly ideal trigonal-planar geometry and the positive char...
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