Mercuric Acetate Mediated Oxidative Cyclization of (2E, 4E)-1-(2-Hydroxyphenyl)-5-phenylpenta-2,4-dien-1-ones: Synthesis of (<i>Z</i>)-2-((<i>E</i>)-3-Phenylallylidene)benzofuran-3(2H)-ones
作者:Dinesh Sharma、Jagdish K. Makrandi
DOI:10.1002/jhet.1931
日期:2014.11
(2E,4E)‐1‐(2‐Hydroxyphenyl)‐5‐phenylpenta‐2,4‐dien‐1‐ones 1a, 1b, 1c, 1d, 1e on oxidative cyclization with mercuric acetate in dimethylsulphoxide have provided (Z)‐2‐((E)‐3‐phenylallylidene)benzofuran‐3(2H)‐ones 2a, 2b, 2c, 2d, 2e in good yields.
Molecular dynamics of (<i>E</i>
)-6-acetyl-3-(2-hydroxy-5-methylphenyl)-5-styryl cyclohex-2-en-1-one and (<i>E</i>
)-6-ethylcarboxylate-3-(2-hydroxy-5-methylphenyl)-5-styryl cyclohex-2-en-1-one in a solution studied by NMR spectroscopy
作者:I. G. Mamedov、M. R. Bayramov、Y. V. Mamedova、A. M. Maharramov
DOI:10.1002/mrc.3982
日期:2013.9
Moleculardynamics of cyclohexenone derivatives of (2E,4E)‐1‐(2‐hydroxy‐5‐methylphenyl)‐5‐phenyl‐2,4‐pentadiene‐1‐one (chalcone) has been investigated in solutions using NMR. The results confirm the formation of O‐H⋯O intramolecular hydrogen bond and the presence of keto–enol tautomeric transitions in the (E)‐6‐acetyl‐3‐(2‐hydroxy‐5‐methylphenyl)‐5‐styryl cyclohex‐2‐en‐1‐one. The free energy of activation
Dihydropyridine-, pyridine-, benzopyranone- and triazoloquinazoline derivatives, their preparation and their use as adenosine receptor antagonists
申请人:The United States of America, Represented by the
Secretary, Department of Health and Human Services
公开号:EP2311806A2
公开(公告)日:2011-04-20
The present invention provides certain novel compounds, compositions, and a method of treating a mammal by blocking its adenosine receptors comprising administering at least one compound of the present invention. Examples of the present inventive compounds include certain flavonoids of formulae (I) and (II), wherein R1 to R4 are as defined in the description, and M is -CH (OH) -CH (R2) - or -C(OH)=C(R2)- and R1, R2 are as defined in the description; or dihydropyridines of formula (III), wherein R2 to R6 are as defined in the description; or pyridines of formula (IV), wherein R2 to R6 are as defined in the description, or triazoloquinazolines of formula (V), wherein R1 and R2 are as defined in the description; and their derivatives, or pharmaceutically acceptable salts thereof.