Synthesis and Morphine Enhancement Activity of N-[5-(2-phenoxyphenyl)-1, 3, 4-oxadiazole-2-yl]-N′-phenylurea Derivatives
作者:Ali Almasi Rad、Majid Sheikhha、Rohollah Hosseini、Sayyed Abbas Tabatabaic、Abbas Shafiee
DOI:10.1002/ardp.200300822
日期:2004.4
The synthesis of N‐[5‐(2‐phenoxyphenyl)‐1, 3, 4‐oxadiazole‐2‐yl]‐N′‐phenylurea derivatives is reported. The structures of these compounds are supported by their IR, 1H‐NMR and mass spectra. Conformational analysis and superimposition of energy minima conformers of these compounds on L‐365, 260, a known 3‐ureido‐1, 4‐benzodiazepine CCK‐B antagonist, showed that the aromatic rings fell in the same contour
Herein, we report a catalytic radical-Smiles rearrangement system of arene migration from ether to carboxylic acid with riboflavin tetraacetate (RFT), a readily available ester of natural vitamin B2, as the photocatalyst and water as a green solvent, being free of external oxidant, base, metal, inert gas protection, and lengthy reaction time. Not only the known substituted 2-phenyloxybenzoic acids