An acidic morpholine derivative containing glyceride from thraustochytrid, Aurantiochytrium

A novel acidic morpholine-derivative containing glyceride (M-glyceride) was isolated from the cells of two strains of the thraustochytrid, Aurantiochytrium. The glyceride accounted for approximately 0.1 -0.4% of the lyophilized cells. The glyceride consisted of peaks I (85%) and II (15%). The structures of the intact and acetylated glycerides were elucidated by liquid chromatography-quadrupole time-of-flight chromatograph mass spectrometer (LC–Q/TOF) and NMR spectroscopy. The hydrate type of M-glyceride was detected as a minor component by LC–MS/MS. By 2D-NMR experiments, peaks I of the intact M-glyceride were elucidated as 1,2-didocosapentaenoyl-glyceryl-2′-oxy-3′-oxomorpholino propionic acid, and peak II was estimated 1,2-palmitoyldocosapentaenoyl- and/or 1,2-docosapentaenoylpalmitoyl-glyceryl-2′-oxy-3′-oxomorpholino propionic acid. The double bond position of docosapentaenoic acid was of the ω − 6 type (C22 = 5.ω − 6). The M-glyceride content varied by the cell cycle. The content was 0.4% of lyophilized cells at the mid logarithmic phase, and decreased to 0.1% at the mid stationary phase. When cells were grown in 1.0 µM M-glyceride-containing growth media, cell growth was stimulated to 110% of the control. With 0.1 µM acetyl M-glyceride, stimulation of 113% of the control was observed. Finding morpholine derivatives in biological components is rare, and 2-hydroxy-3-oxomorpholino propionic acid (auranic acid) is a novel morpholine derivative.

Highly sensitive potentiometric sensors for thorium ions detection using morpholine derivative self-assembled on silver nanoparticles

Potentiometric screen-printed electrodes were constructed for Th(iv) determination in water samples. The optimized electrodes exhibited fast response time, wide linear range, low detection limit and high selectivity towards Th(iv) ions.

Synthesis, Characterization and Study the Biological Activity of New Morpholine Derivative

A new series of morpholine derivative were prepared by reacting the morpholine with ethyl chloro acetate in the presence triethylamine as an catalyst and benzene as a solvent gave the ethyl morpholin-4-ylacetate reaction with hydrazine hydrate and ethanol as a solvent gave the 2-(morpholin-4-yl)acetohydrazide gave series of Schiff base were prepared by reacting 2-(morpholin-4- yl)acetohydrazide with different aromatic aldehydes and ketons . The new series of (3-9 )were synthesis by reaction of Schiff base (10-14) with chloroacetyl chloride, triethyl amine as an catalyst and 1,4dioxane as a solvent .The chemical structures of the synthesis compound were identified by spectral methods their [ IR ,1H-NMR and 13C-NMR ].The synthesised compounds were screened for antibacterial activity and antifungal activity promising by disc diffusion method by measuring the zone of inhibition and the results were compared to standard drugs ciprofloxacin .

Synthesis of Tricycles Based on 1,6-Anhydro-β-D-hexopyranoses Fused with Morpholine. 3,10,12-Trioxa-6-azatricyclo[7.2.1.02,7]dodecanes

The key step of the synthetic route was opening of the oxirane ring in 1,6:3,4-dianhydro-2-O-tosyl-β-D-galactopyranose (1) with 2-chloroethanol to give 1,6-anhydro-4-O-(2-chloroethyl)-2-O-tosyl-β-D-glucopyranose (2), which was converted in four steps into 4-O-(2-aminoethyl)-1,6:2,3-dianhydro-β-D-mannopyranose (6). The latter compound underwent intramolecular cyclisation to afford the fused morpholine derivative 3-amino-1,6-anhydro-3-deoxy-3-N,4-O-ethylene-β-D-altropyranose (7) which gave the corresponding quaternary ammonium salt 11 by N-methylation. Acid cleavage of the 1,6-anhydro bond in 7 gave 3-acetamido-3-deoxy-3-N,4-O-ethylene-D-altropyranose (9).