P2′-truncated BACE-1 inhibitors with a novel hydroxethylene-like core
摘要:
Highly potent BACE-1 protease inhibitors derived from a novel hydroxyethylene-like core structure were recently developed by our group using X-ray crystal structure data and molecular modelling. In a continuation of this work guided by molecular modelling we have explored a truncated core motif where the P2' amide group is replaced by an ether linkage resulting in a set of alkoxy, aryloxy and alkylaryl groups, with the overall aim to reduce molecular weight and the number of amide bonds to increase permeability and bestow the inhibitors with drug-like features. The most potent of these inhibitors displayed a BACE-I IC50 value of 140 nM. The synthesis of these BACE-I inhibitors utilizes readily available starting materials, furnishing the target compounds in good overall yields. (C) 2009 Elsevier Masson SAS. All rights reserved.
A compound of formula (I): N-oxides, addition salts, quaternary amines metal complexes stereochemically isomeric forms and metabolites thereof, wherein A is CR1 or N; D is H, C1-C6alkyl, C2-C6alkenyl, C2-C6alkynyl or Q is C2-C6alkenyl, C2-Cealkynyl, aryl or heterocyclyl; W is H, Ci-Cealkyl, C2-C6alkenyl, haloC1-C3alkyl, hydroxyC1-C3alkyl, C3-C6Cy cloalkyl, aryl or heterocyclyl; one of X' and X" is H or CH3, the other is C1-C3alkyl, F, OH, NRaRb, CF3 or N3; or X' and X" are both F; Y is a bond, CH2, NRa, O, CH2CH2, CH2NRa, CH2O or S(=O)r; Z is O, S(=O)r or NRa; the other variables are as defined in the specification. The compounds of the invention are inhibitors of BACE and are among other things useful for the treatment and/or prevention of conditions associated with BACE activity such as Alzheimer's disease.
P2′-truncated BACE-1 inhibitors with a novel hydroxethylene-like core
作者:Jenny Adrian Meredith、Catarina Björklund、Hans Adolfsson、Katarina Jansson、Anders Hallberg、Åsa Rosenquist、Bertil Samuelsson
DOI:10.1016/j.ejmech.2009.10.041
日期:2010.2
Highly potent BACE-1 protease inhibitors derived from a novel hydroxyethylene-like core structure were recently developed by our group using X-ray crystal structure data and molecular modelling. In a continuation of this work guided by molecular modelling we have explored a truncated core motif where the P2' amide group is replaced by an ether linkage resulting in a set of alkoxy, aryloxy and alkylaryl groups, with the overall aim to reduce molecular weight and the number of amide bonds to increase permeability and bestow the inhibitors with drug-like features. The most potent of these inhibitors displayed a BACE-I IC50 value of 140 nM. The synthesis of these BACE-I inhibitors utilizes readily available starting materials, furnishing the target compounds in good overall yields. (C) 2009 Elsevier Masson SAS. All rights reserved.