Potent and selective 2-naphthylsulfonamide substituted hydroxamic acid inhibitors of matrix metalloproteinase-13
摘要:
The matrix metalloproteinase enzyme MMP-13 plays a key role in the degradation of type II collagen in cartilage and bone in osteoarthritis (OA). An effective MMP-13 inhibitor would provide a disease modifying therapy for the treatment of arthritis, although this goal still continues to elude the pharmaceutical industry due to issues with safety. Our efforts have resulted in the discovery of a series of hydroxamic acid inhibitors of MMP-13 that do not significantly inhibit MMP-2 (gelatinase-1). MMP-2 has been implicated in the musculoskeletal side effects resulting from pan-MMP inhibition due to findings from spontaneously occurring human MMP-2 deletions. Analysis of the SAR of hundreds of previously prepared hydroxamate based MMP inhibitors lead us to 2-naphthylsulfonamide substituted hydroxamates which exhibited modest selectivity for MMP-13 versus MMP-2. This Letter describes the lead optimization of 1 and identification of inhibitors exhibiting >100-fold selectivity for MMP-13 over MMP-2 (C) 2011 Elsevier Ltd. All rights reserved.
Peptide nucleic acids (PNAs) with a functional backbone
摘要:
The synthesis of 10 new T-PNA monomers derived from L-amino acids is presented. The monomers were incorporated into decameric PNA oligomers, and the hybridisation with RNA, DNA and PNA complements studied by thermal stability measurements. (C) 1998 Elsevier Science Ltd. All rights reserved.
Design of a New Class of Orally Active Fibrinogen Receptor Antagonists
作者:Scott I. Klein、Bruce F. Molino、Mark Czekaj、Charles J. Gardner、Valeria Chu、Karen Brown、Ralph D. Sabatino、Jeffrey S. Bostwick、Charles Kasiewski、Ross Bentley、Vincent Windisch、Mark Perrone、Christopher T. Dunwiddie、Robert J. Leadley
DOI:10.1021/jm9801096
日期:1998.7.1
The integrin receptor recognition sequence Arg-Gly-Asp was successfully used as a template from which to develop a series of potent, selective, orallyactive, peptide-based fibrinogen receptor antagonists with a long duration of action. Simple modifications centered on the Arg and Gly residues quickly led to a modified peptide (1) with significantly enhanced ability to inhibit in vitro platelet aggregation
the aziridine ring was assigned by a combination of experimental circulardichroism (CD) investigations and quantum chemical CD calculations. In agreement with previous docking studies, the diastereomers all exhibit similar activity. The compounds were found to be more active against the related mammalian enzyme cathepsin D, presumably due to productive interactions of the N‐alkyl substituent with the
A compound of the Formula (I):
wherein Z, R1, R, and Ar2 are as defined in the specification. This invention also relates to sulfonamide compounds of the Formula (I) that are inhibitors of procollagen C-proteinase, pharmaceutical compositions containing them, methods for their use, and methods for preparing the compounds.
作者:George W. Huffman、Paul D. Gesellchen、Jan R. Turner、Robert B. Rothenberger、Harold E. Osborne、F. Dean Miller、Jerry L. Chapman、Stephen W. Queener
DOI:10.1021/jm00088a028
日期:1992.5
Highly purified isopenicillin N synthase (IPNS) from two sources (naturallyoccurring in Penicillium chrysogenum and that expressed in Escherichia coli via a cloned gene derived from Cephalosporium acremonium) have been isolated and utilized in vitro to test synthetic modifications of the natural substrate, (L-alpha-amino-delta-adipyl)-L-cysteinyl-D-valine (ACV). A very sensitive procedure utilizing
Defining the Structural Parameters That Confer Anticonvulsant Activity by the Site-by-Site Modification of (<i>R</i>)-<i>N</i>′-Benzyl 2-Amino-3-methylbutanamide
作者:Amber M. King、Marc De Ryck、Rafal Kaminski、Anne Valade、James P. Stables、Harold Kohn
DOI:10.1021/jm200760a
日期:2011.10.13
FAAs, a substituted heteroatom one atom removed from the C(2)-center was optimal. Previously in this issue, we showed that PAAD activity was dependent upon the electronicproperties of the 4′-N′-benzylamide substituent, while FAA activity was insensitive to electronic changes at this site. In this study, we prepared analogues of (R)-N′-benzyl 2-amino-3-methylbutanamide to identify the structural components