Imidazole-5-acrylic acids: potent nonpeptide angiotensin II receptor antagonists designed using a novel peptide pharmacophore model
作者:R. M. Keenan、J. Weinstock、J. A. Finkelstein、R. G. Franz、D. E. Gaitanopoulos、G. R. Girard、D. T. Hill、T. M. Morgan、J. M. Samanen
DOI:10.1021/jm00099a013
日期:1992.10
l]-2- propenoic acid, has been shown to be a potent, competitive, and orally active small molecule AT-1 receptorantagonist. It exhibits a 2 orders of magnitude increase in binding affinity and a 10-fold improvement in in vivo potency as compared to compound 1 and represents an important milestone in the development of even more potent nonpeptide angiotensinIIreceptorantagonists.
Angiotensin II receptor antagonists having the formula:
which are useful in requlating hypertension and in the treatment of congestive heart failure, renal failure, and glaucoma, pharmaceutical compositions including these antagonists, and methods of using these compounds to produce angiotensin II receptor antagonism in mamnals.
式的血管紧张素 II 受体拮抗剂:
可用于调节高血压和治疗充血性心力衰竭、肾功能衰竭和青光眼的拮抗剂,包括这些拮抗剂的药物组合物,以及使用这些化合物在动物体内产生血管紧张素 II 受体拮抗作用的方法。
Cross-Coupling Reactions of Potassium Alkyltrifluoroborates with Aryl and 1-Alkenyl Trifluoromethanesulfonates
作者:Gary A. Molander、Takatoshi Ito
DOI:10.1021/ol006896u
日期:2001.2.1
[GRAPHICS]The palladium-catalyzed coupling reaction of potassium alkyltrifluoroborates with aryl- or alkenyltriflates proceeds to afford the corresponding arenes or alkenes in high yield. The berates are all solids, stable in air, and thus can be stored on the shelf indefinitely. The cross coupling can be effected using PdCl2(dppf). CH2Cl2 as the catalyst in THF-H2O in the presence of CS2CO3 A variety of functional groups can be tolerated within the berate and/or the triflate coupling partner.
Palladium-catalyzed cross-coupling of cyclopropylboronic acids with alkenyl triflates
作者:Min-Liang Yao、Min-Zhi Deng
DOI:10.1016/s0040-4039(00)01655-5
日期:2000.11
A novel method for the synthesis of stereodefined cyclopropyl-substituted alkenes, based on the Suzuki-type cross-coupling reaction between cyclopropylboronic acids and various alkenyl triflates, is described. It was found that the environment of the alkenyl triflate plays an important role in the reaction, and that the use of an appropriate base can make the reaction proceed readily to give stereodefined cyclopropyl-substituted alkenes in good to high yield. (C) 2000 Elsevier Science Ltd. All rights reserved.