α2 Adrenoceptor Agonists as Potential Analgesic Agents. 3. Imidazolylmethylthiophenes
摘要:
A series of imidazolylmethylthiophenes has been prepared and evaluated as ligands for the at adrenoceptor. These compounds were tested in two animal models that are predictive of analgesic activity in humans. The 3-thienyl compounds were generally the most potent, particularly those with substitution in the 4-position. A subset of the most active compounds was further evaluated for adverse cardiovascular effects in the anesthetized rat model. In addition to excellent binding at the alpha (2D) adrenoceptor, the 4-bromo analogues 20e and 21e were very active in the rat abdominal irritant test (RAIT) with ED50 doses of 0.38 and 0.31 mg/kg, respectively. We constructed a pharmacophore model based on the biological activity of the present series, dexmedetomidine (1), and conformationally restrained analogues 3 and 4.
α2 Adrenoceptor Agonists as Potential Analgesic Agents. 3. Imidazolylmethylthiophenes
摘要:
A series of imidazolylmethylthiophenes has been prepared and evaluated as ligands for the at adrenoceptor. These compounds were tested in two animal models that are predictive of analgesic activity in humans. The 3-thienyl compounds were generally the most potent, particularly those with substitution in the 4-position. A subset of the most active compounds was further evaluated for adverse cardiovascular effects in the anesthetized rat model. In addition to excellent binding at the alpha (2D) adrenoceptor, the 4-bromo analogues 20e and 21e were very active in the rat abdominal irritant test (RAIT) with ED50 doses of 0.38 and 0.31 mg/kg, respectively. We constructed a pharmacophore model based on the biological activity of the present series, dexmedetomidine (1), and conformationally restrained analogues 3 and 4.
ARYL FLUOROETHYL UREAS ACTING AS ALPHA 2 ADRENERGIC AGENTS
申请人:Chow Ken
公开号:US20080194650A1
公开(公告)日:2008-08-14
The invention provides well-defined aryl fluoroethyl ureas that are useful as selective alpha
2
adrenergic agonists. As such, the compounds described herein are useful in treating a wide variety of disorders associated with modulation of alpha
2
adrenergic receptors.
Palladium-Catalyzed Preparation of Weinreb Amides from Boronic Acids and <i>N</i>-Methyl-<i>N</i>-methoxycarbamoyl Chloride
作者:Ravi Krishnamoorthy、Sang Q. Lam、Christopher M. Manley、R. Jason Herr
DOI:10.1021/jo902647h
日期:2010.2.19
A simple protocol for the synthesis of Weinreb benzamides and α,β-unsaturated Weinrebamides through a palladium-catalyzed cross-coupling reaction between organoboronic acids and N-methoxy-N-methylcarbamoyl chloride has been developed. The method is also applicable to the use of potassium organotrifluoroborates.