A phosgene and peroxide-free one-pot tandem synthesis of isatoic anhydrides involving anthranilic acid, Boc anhydride, and 2-chloro-N-methyl pyridinium iodide
摘要:
A phosgene and peroxide-free approach for the synthesis of isatoic anhydrides has been described. The synthesis involves the carbamate formation with Boc anhydride followed by in situ cyclization to afford the isatoic anhydride. The importance of this synthetic strategy is in the ease of operation, scalability, and preparation from readily available raw materials. (C) 2013 Elsevier Ltd. All rights reserved.
A library of 72 quinolones was synthesized from substituted anthranilic acids, using ynone intermediates. These masked beta-dicarbonyl synthons allowed cyclization under milder conditions than previously reported quinolone syntheses. (C) 2009 Elsevier Ltd. All rights reserved
Two-step syntheses of fused quinoxaline-benzodiazepines and bis-benzodiazepines
作者:Zhigang Xu、Justin Dietrich、Arthur Y. Shaw、Christopher Hulme
DOI:10.1016/j.tetlet.2010.06.116
日期:2010.8
A two-step solution phase synthesis employing a double UDC (Ugi/Deprotect/Cyclize) strategy has been utilized to obtain fused 6,7,6,6-quinoxalinone-benzodiazepines and 6,7,7,6-bis-benzodiazepines. Optimization of the methodology to produce these tetracyclic scaffolds was enabled by microwave irradiation, incorporation of trifluoroethanol as solvent, and the use of the convertible isocyanide, 4-tert-butyl
[EN] 4-(2-FLUORO-4-METHOXY-5-3-(((1-METHYLCYCLOBUTYL)METHYL)CARBAMOYL)BICYCLO[2.2.1]HEPTAN-2-YL)CARBAMOYL)PHENOXY)-1-METHYLCYCLOHEXANE-1-CARBOXYLIC ACID DERIVATIVES AND SIMILAR COMPOUNDS AS RXFP1 MODULATORS FOR THE TREATMENT OF HEART FAILURE<br/>[FR] DÉRIVÉS D'ACIDE 4-(2-FLUORO-4-MÉTHOXY-5-3-(((1-MÉTHYLCYCLOBUTYLE)MÉTHYL)CARBAMOYL)BICYCLO[2.2.1]HEPTAN-2-YL) CARBAMOYL)PHÉNOXY)-1-MÉTHYLCYCLOHEXANE-1-CARBOXYLIQUE ET COMPOSÉS SIMILAIRES COMME MODULATEURS DE RXFP1 POUR LE TRAITEMENT DE L'INSUFFISANCE CARDIAQUE
申请人:ASTRAZENECA AB
公开号:WO2022122773A1
公开(公告)日:2022-06-16
The present invention relates to 4-(2-Fluoro-4-methoxy-5-3-(((l- methylcyclobutyl)methyl)carbamoyl)bicyclo[2.2.1]heptan-2-yl) carbamoyl)phenoxy)-l-methylcyclohexane-l-carboxylic acid derivatives and similar compounds of formula (I) as RXFP1 modulators for the treatment of heart failure, heart failure with preserved ejection fraction, heart failure with mid-range ejection fraction, heart failure with reduced ejection fraction, chronic kidney disease and acute kidney injury. The present invention also relates to crystalline forms of such compounds. An exemplary compound is e.g. (A).