Antifungal Activities of New Coumarins

Abstract

Abstract:Newly synthesized coumarins 4-((5-mercapto-4-phenyl-4H-1,2,4-triazol-3-yl)-methoxy)-2H-chromen-2-one and 4-((5-(phenylamino)-1,3,4-thiadiazol-2-yl)-methoxy)-2H-chromen-2-one were tested against selected types of fungi and showed significant activities. DFT calculations of the synthesized coumarins were performed using molecular structures with optimized geometries. Molecular orbital calculations provide a detailed description of the orbitals, including spatial characteristics, nodal patterns, and the contributions of individual atoms.

New Corrosion Inhibitor Derived from Coumarin

“…Corrosion inhibitors naturaly or synthetic were dominant, tools used in oil and gas industries due to barriers formation to protect the alloys and metals surfacesf against corrosive acids or bases solutions. The majority of used inhibitors that have one or more nitrogen, oxygen and/or sulfur atoms, such as pyridines, imidazoles rings [42][43][44] in addition to polymers with heterocyclic rings [45].…”

<em>Ginkgo Biloba</em> for Reducing Hyperlipideamia: Case Study

“…[3] Flavonoid glycosides with proanthaiocyanidines in GBE had cancer prevention agent bolster the body,s cell reinforcement protection framework fighting free radicals. In continuation of previous studies [4][5][6][7][8][9][10][11][12][13][14], herein we are reporting investigation started from the Ginkgo biloba as the active material for reducing level of lipid profile in human.…”

Coumarin-3-Amine as New Corrosion Inhibitor

“…The inhibitor molecules may have bonded with the atoms of metal on the surface of mild steel and produce metal complex which blocks the mild steel surface against corrosive solutions [13]. To extend our previous investigations about synthesis of new applicable molecules [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], the organic compound derived from coumarin-3-amine namely 3-((4-nitrobenzylidene)amino) has been synthesized and characterized by carbon-hydrogen-nitrogen (CHN) elemental analysis technique in addition to Nuclear magnetic resonance (NMR) and Fourier transform infrared FTIR spectroscopies. The action inhibitor molecules in acidic solutions to inhibits the corrosions of mild steel corrosion has been investigated based on weight loss method.…”