Rh-Catalyzed C–H Amination/Annulation of Acrylic Acids and Anthranils by Using −COOH as a Deciduous Directing Group: An Access to Diverse Quinolines
作者:Yang Gao、Jianhong Nie、Yibiao Li、Xianwei Li、Qian Chen、Yanping Huo、Xiao-Qiang Hu
DOI:10.1021/acs.orglett.0c00539
日期:2020.4.3
A method for the synthesis of diverse polysubstituted quinolines from readily available acrylic acids and anthranils has been developed. The weakly coordinating –COOH directing group, which can be tracelessly removed in the cascadecyclization, is essential for this reaction. Diverse polysubstituted quinolines were obtained under mild reaction conditions with simple H2O and CO2 as byproducts. More
Deaminative Arylation of Amino Acid-derived Pyridinium Salts
作者:Megan E. Hoerrner、Kristen M. Baker、Corey H. Basch、Earl M. Bampo、Mary P. Watson
DOI:10.1021/acs.orglett.9b02643
日期:2019.9.20
A Suzuki–Miyaura cross-coupling of α-pyridinium esters and arylboroxines has been developed. Combined with formation of the pyridiniumsalts from amino acid derivatives, this method enables amino acid derivatives to be efficiently transformed into α-aryl esters and amides. Under the mild conditions, broad functional group tolerance on both the amino acid derivatives and the arylboroxine are observed
A total of 20 substituted analogues of nicotine (1a) and homoazanicotine (3a) were examined in order to determine whether or not they might bind in a similar manner at alpha4beta2 nicotinic acetocholinergic (nACh) receptors. It was found that parallel structural changes in the two series resulted in parallel shifts in affinity. Evidence suggests that the two series are binding in a comparable fashion. (C) 2003 Elsevier Science Ltd. All rights reserved.
[EN] AMINOPIPERIDINE AMIDE DERIVATIVES AS VLA-1 INTEGRIN ANTAGONISTS AND USES THEREOF<br/>[FR] DERIVES D'AMIDE D'AMINOPIPERIDINE UTILISES EN TANT QU'ANTAGONISTES D'INTEGRINE VLA-1 ET UTILISATIONS DE CEUX-CI
申请人:ICOS CORP
公开号:WO2005019177A1
公开(公告)日:2005-03-03
Compounds of formula (I) that are VLA-1 integrin antagonists are disclosed. Also disclosed are compositions containing such compounds and methods of using such compounds in treating diseases mediated, at least in part, by the VLA-1 integrin.