A systematic study of anilines led to the discovery of a metabolically robust fluoroindoline replacement for the alkoxy aniline toxicophore in 1. Investigations of the P1 pocket resulted in the discovery of a wide tolerance of functionality leading to the discovery of 11 as a potent and selective inhibitor of cathepsin S.
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http://dx.doi.org/10.1016/j.bmcl.2005.12.056 | DOI Listing |
Bioorg Med Chem Lett
October 2006
Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, CA 92121, USA.
The synthesis and structure-activity relationship of a series of arylaminoethyl amide cathepsin S inhibitors are reported. Optimization of P3 and P2 groups to improve overall physicochemical properties resulted in significant improvements in oral bioavailability over early lead compounds. An X-ray structure of compound 37 bound to the active site of cathepsin S is also reported.
View Article and Find Full Text PDFBioorg Med Chem Lett
April 2006
Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, CA 92121, USA.
A series of N(alpha)-2-benzoxazolyl-alpha-amino acid-(arylaminoethyl)amides were identified as potent, selective, and noncovalent inhibitors of cathepsin S. Structure-activity relationships including strategies for modulating the selectivities among cathepsins S, K, and L, and in vivo pharmacokinetics are discussed. A X-ray structure of compound 3 bound to the active site of cathepsin S is also reported.
View Article and Find Full Text PDFBioorg Med Chem Lett
March 2006
Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, CA 92121, USA.
A systematic study of anilines led to the discovery of a metabolically robust fluoroindoline replacement for the alkoxy aniline toxicophore in 1. Investigations of the P1 pocket resulted in the discovery of a wide tolerance of functionality leading to the discovery of 11 as a potent and selective inhibitor of cathepsin S.
View Article and Find Full Text PDFBioorg Med Chem Lett
November 2005
Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, CA 92121, USA.
A series of Nalpha-acyl-alpha-amino acid-(arylaminoethyl)amides were found to be potent and noncovalent cathepsin S inhibitors. Compound 20 possessed high cathepsin S affinity (Ki=3.3 nM) and showed excellent selectivity over cathepsin K, L, F, and V.
View Article and Find Full Text PDFBioorg Med Chem Lett
June 2003
Arthritis & Bone Metabolism Therapeutic Area, Novartis Pharma AG, CH-4002, Basel, Switzerland,
Modeling, synthesis and in vitro activities of a series of arylaminoethyl amide based inhibitors of the cysteine protease cathepsin K are described.
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