current approaches to these important building blocks typically rely on oxidative processes, which might lead to issues such as lack of product diversity and functional group compatibility. Here, we report the design and utilization of 2-(BMIDA) acrylaldehyde as a suitable coupling partner toward photoredox-catalyzed intermolecular radical addition reaction for the rapid synthesis of functionalized α-boryl
Disclosed are compounds of Formula I, or a salt thereof cyclic polypeptide of Formula I: Formula I where A, B, E, R4, and R8 are as defined herein, which compounds have properties for antagonizing PCSK9. Also described are pharmaceutical formulations comprising the compounds of Formula I or their salts, and methods of treating cardiovascular disease and conditions related to PCSK9 activity, e.g. atherosclerosis, hypercholesterolemia, coronary heart disease, metabolic syndrome, acute coronary syndrome, or related cardiovascular disease and cardiometabolic conditions
公开了式 I 的化合物或其盐式 I 的环状多肽:式 I 其中 A、B、E、R4 和 R8 如本文所定义,这些化合物具有拮抗 PCSK9 的特性。还描述了包含式 I 化合物或其盐的药物制剂,以及治疗心血管疾病和与 PCSK9 活性有关的病症(如动脉粥样硬化、高胆固醇血症、冠心病、代谢综合征、急性冠状动脉综合征或相关心血管疾病和心脏代谢病症)的方法。
Cholecystokinin (CCK) antagonists: (R)-tryptophan-based hybrid antagonists of high affinity and selectivity for CCK-A receptors
作者:James F. Kerwin、Frank Wagenaar、Hana Kopecka、Chun Wel Lin、Thomas Miller、David Witte、Michael Stashko、Alex M. Nadzan
DOI:10.1021/jm00116a002
日期:1991.12
The intriguing structural similarities of glutamic acid based cholecystokinin (CCK) antagonists (A-64718 and A-65186) and the benzodiazepine CCK antagonist MK-329 (L-364,718) have been reported. Efforts to include the weak CCK antagonist benzotript into this construct utilizing a similar approach have resulted in a novel series of benzotript-based hybrid antagonists N-alpha-(3'-quinolylcarbonyl)-(R)-tryptophan di-n-pentylamide (9, A-67396), N-alpha-(4',8'-dihydroxy-2'-quinolylcarbonyl)-(R)-tryptophan di-n-pentylamide (23, A-70276), and N-alpha-(3'-quinolylcarbonyl)-(R)-5'-hydroxytryptophan di-n-pentylamide (36, A-71134) which possess respectively binding affinities of 23, 21, and 11 nM for the pancreatic CCK-A receptor and which inhibit CCK8-induced amylase secretion. Compound 9 possesses a selectivity of > 500-fold for the pancreatic CCK-A receptor over the CCK-B receptor 1.
N-tert-BUTOXYCARBONYL-l-PHENYLALANINE
作者:Paleveda, William J.、Holly, Frederick W.、Veber, Daniel F.