and convenient synthesis of α‐allyl cyclic amidines has been achieved by applying a novel cascade reaction. Copper(I)‐mediated in situ N‐sulfonyl ketenimine formation from the reaction of a terminal alkyne with sulfonyl azide is followed by an intramolecular nucleophilic attack on the central carbon atom by an allylic tertiary amine, and then an aza‐Claisen rearrangement takes place through a chair
Targeting the Hsp90 Chaperone: Synthesis of Novel Resorcylic Acid Macrolactone Inhibitors of Hsp90
作者:James E. H. Day、Swee Y. Sharp、Martin G. Rowlands、Wynne Aherne、Paul Workman、Christopher J. Moody
DOI:10.1002/chem.200902766
日期:——
A series of benzo‐macrolactones has been prepared by chemical synthesis, and evaluated as inhibitors of heat shock protein 90 (Hsp90), an emerging attractive target for novel cancer therapeutic agents. A new synthesis of these resorcylic acidmacrolactone analogues of the natural product radicicol is described in which the key steps are the acylation and ring opening of a homophthalic anhydride to
assumption that this rearrangement involves a reactive allylic cation intermediate provides a simple explanation of the fact that no successful early-transition-metal-catalyzed hydroaminoalkylations of allenes have previously been reported. As a result of the generation of the corresponding cation, the titanium-catalyzed intermolecular hydroaminoalkylation of propa-1,2-diene unexpectedly gives an aminocyclopentane
[EN] BIOPROBES FOR LYSYL OXIDASES AND USES THEREOF<br/>[FR] BIOSONDES POUR LYSYL OXYDASES ET LEURS UTILISATIONS
申请人:PHARMAXIS LTD
公开号:WO2021155439A1
公开(公告)日:2021-08-12
The present invention relates to novel bioprobes which are capable of binding to certain amine oxidase enzymes. These bioprobes are useful in methods of detecting and determining the concentration of certain amine oxidase enzymes in a sample as well as in methods for the quantitative assessment of inhibition of certain amine oxidases.