Synthesis of 2-aryl-3-hydroxymethyl-5,5-difluoropiperidines
摘要:
A strategy toward the synthesis of functionalized 5,5-difluoropiperidines, a class of compounds with potential as building block in medicinal chemistry, was developed. In a three-step procedure 2,2-difluoroglutaric anhydride was synthesized starting from ethyl bromodifluoroacetate. This key intermediate reacts fluently with various imines to yield 5,5-difluoropiperidinone carboxylic acids. Subsequent esterification of the obtained carboxylic acids enabled the isolation of trans-substituted 5,5difluoro-2-arylpiperidinone-3-carboxylates as the major isomers. Reduction of the difluorinated piperidinonecarboxylates using borane gave rise to new trans-2-aryl-1-benzyl-5,5-difluoro-3-hydroxymethylpiperidines in excellent yields. (C) 2012 Elsevier Ltd. All rights reserved.
[EN] COMPOUNDS AND METHODS OF TREATING CANCERS<br/>[FR] COMPOSÉS ET MÉTHODES DE TRAITEMENT DE CANCERS
申请人:CULLGEN SHANGHAI INC
公开号:WO2022073469A1
公开(公告)日:2022-04-14
This disclosure relates to GSPT1 degrader compounds (e.g. small molecule compounds), compositions comprising one or more of the compounds, and to methods of use the compounds for the treatment of certain disease in a subject in need thereof. The disclosure also relates to methods for identifying such compounds.