Synthesis and evaluation of opioid receptor-binding affinity of elaeocarpenine and its analogs
摘要:
Both enantiomers of elaeocarpenine (1) and its analogs, 21, 22, 25, and 27, were synthesized from bicyclic aldehydes 8-10 via a flexible route previously established for total synthesis of grandisines, and their binding affinities for mu-, kappa- and delta-opioid receptor subtypes were evaluated. We found that (9R)-1 exhibited higher affinity than (9S)-1 for all the subtypes, but the enantiomers showed little subtype selectivity. Analogs 21 having a pyrrolizidine skeleton and 27 having a stemona-type skeleton in place of the indolizidine unit of (9S)-1 showed mu-selective and mu-, kappa-selective binding, respectively. (C) 2010 Elsevier Ltd. All rights reserved.
[EN] TRIAZOLE PHENYL COMPOUNDS AS AGONISTS OF THE APJ RECEPTOR<br/>[FR] COMPOSÉS PHÉNYLE TRIAZOLE EN TANT QU'AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2018093579A1
公开(公告)日:2018-05-24
Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and may have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures: (I), (II) where the definitions of the variables are provided herein.
[EN] TRIAZOLE FURAN COMPOUNDS AS AGONISTS OF THE APJ RECEPTOR<br/>[FR] COMPOSÉS DE TRIAZOLE FURANE UTILISÉS EN TANT QU'AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2018097944A1
公开(公告)日:2018-05-31
Compounds of Formula (I) and Formula (II), pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and have use in treating cardiovascular and other conditions. Compounds of Formula (I) and Formula (II) have the following structures: (I); (II). Intermediates (V) are also claimed.
[EN] HETEROARYL-SUBSTITUTED TRIAZOLES AS APJ RECEPTOR AGONISTS<br/>[FR] TRIAZOLES SUBSTITUÉS PAR HÉTÉROARYLE UTILISÉS EN TANT QU'AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2018097945A1
公开(公告)日:2018-05-31
Compounds of Formula (I) and Formula (II), pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and may have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures: where the definitions of the variables are provided herein.
We report herein the first examples of a palladium-catalyzed enantioselective Cacchi reaction for the synthesis of indoles bearing a chiral C2-aryl axis. In the presence of a catalytic amount of Pd(OAc)2 and (R,R)-QuinoxP* ligand, reaction of N-aryl(alkyl)sulfonyl-2-alkynylanilides with arylboronic acids under oxygen atmosphere afforded enantioenriched 2,3-disubstituted indoles in high yields and enantioselectivity
Expeditious Synthesis of Benzopyrans via Lewis Acid-Catalyzed C−H Functionalization: Remarkable Enhancement of Reactivity by an <i>Ortho</i> Substituent
An expeditious construction of a benzopyran skeleton via Lewis acid-catalyzed C−H functionalization was achieved. In this process, a [1,5] hydride shift and 6-endo cyclization successively occurred to give benzopyrans. The presence of substituents ortho to the alkoxygroup significantly enhanced the reactivity, affording the desired compounds in excellent chemical yields with short reaction times.