Synthesis of Bicyclic Imidazoles via [2 + 3] Cycloaddition between Nitriles and Regioselectively Generated α-Imino Gold Carbene Intermediates
摘要:
The cyclic alpha-imino gold carbene intermediate B is most likely generated in situ via regioselective nitrene transfer from an azido group to a tethered terminal alkyne in the presence of a gold catalyst and at ambient temperature. This highly electrophilic intermediate can react with a weakly nucleophilic nitrile, which is used as the reaction solvent, to deliver a bicyclic imidazole rapidly in an overall bimolecular [2 + 2 + 1] cycloaddition and in mostly serviceable yield. The competing intramolecular Huisgen reaction, although likely also catalyzed by gold, is minimized by using AuCl3 as the catalyst.
[EN] NEW COMPOUNDS AND METHODS<br/>[FR] NOUVEAUX COMPOSÉS ET PROCÉDÉS
申请人:BENEVOLENTAI BIO LTD
公开号:WO2020260871A1
公开(公告)日:2020-12-30
The present invention relates to compounds of Formula (I) or a pharmaceutically acceptable salt, solvate, hydrate, tautomer, optical isomer, N-oxide, and/or prodrug thereof. The present invention also relates to pharmaceutical compositions comprising the compounds of the invention, and to their use in the treatment or prevention of medical conditions in which inhibition of c-ABL is beneficial. (I)
The present invention provides a compound represented by the formula (I):
or a pharmacologically acceptable salt thereof, wherein Ar
1
represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar
2
represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X
1
represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by Aβ.
[EN] FUSED BICYCLIC COMPOUNDS AND USES THEREOF IN MEDICINE<br/>[FR] COMPOSÉS BICYCLIQUES FUSIONNÉS ET LEURS UTILISATIONS EN MÉDECINE
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2019034096A1
公开(公告)日:2019-02-21
Fused bicyclic compounds and uses thereof in medicine. In particular, provided are fused bicyclic compounds used as ASK1 active regulator and and use of the compounds in the manufacture of a drug for treating a disease regulated by ASK1. Further provided are a pharmaceutical composition and a method of treating a disease regulated by ASK1 comprising administering the compounds or pharmaceutical composition thereof.
CARBOXYLIC ACID AMIDES, THE PREPARATION THEREOF, AND THEIR USE AS PHARMACEUTICAL COMPOSITIONS
申请人:Gillard James
公开号:US20080132496A1
公开(公告)日:2008-06-05
Substituted carboxylic acid amides of general formula
wherein A, B, and R
1
to R
5
are as defined herein, and the tautomers and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable properties, such as antithrombotic activity and factor Xa-inhibiting activity.
The present invention provides a compound represented by the formula (I):
or a pharmacologically acceptable salt thereof, wherein Ar1 represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar2 represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X1 represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by Aβ.