Novel Staphyloxanthin Inhibitors with Improved Potency against Multidrug Resistant Staphylococcus aureus
摘要:
Diapophytoene desaturase (CrtN) is a potential novel target for intervening in the biosynthesis of the virulence factor staphyloxanthin. In this study, 38 1,4-benzodioxan-derived CrtN inhibitors were designed and synthesized to overwhelm the defects of leading compound 4a. Derivative 47 displayed superior pigment inhibitory activity, better hERG inhibitory properties and water solubility, and significantly sensitized MRSA strains to immune clearance in vitro. Notably, 47 displayed excellent efficacy against pigmented S. aureus Newman, Mu50 (vancomycin-intermediate MRSA, VISA), and NRS271 (linezolid-resistant MRSA, LRSA) comparable to that of linezolid and vancomycin in vivo.
Novel Staphyloxanthin Inhibitors with Improved Potency against Multidrug Resistant Staphylococcus aureus
摘要:
Diapophytoene desaturase (CrtN) is a potential novel target for intervening in the biosynthesis of the virulence factor staphyloxanthin. In this study, 38 1,4-benzodioxan-derived CrtN inhibitors were designed and synthesized to overwhelm the defects of leading compound 4a. Derivative 47 displayed superior pigment inhibitory activity, better hERG inhibitory properties and water solubility, and significantly sensitized MRSA strains to immune clearance in vitro. Notably, 47 displayed excellent efficacy against pigmented S. aureus Newman, Mu50 (vancomycin-intermediate MRSA, VISA), and NRS271 (linezolid-resistant MRSA, LRSA) comparable to that of linezolid and vancomycin in vivo.
[EN] DPP-IV INHIBITORS<br/>[FR] INHIBITEURS DE LA DPP-IV
申请人:GRAFFINITY PHARMACEUTICALS AG
公开号:WO2005095343A1
公开(公告)日:2005-10-13
The invention relates to compounds of formula (I), Z-C(R<1>R<2>)-C(R<3>NH2)-C(R<4>R<5>)-X-N(R<6>R<7>), wherein Z, R<1-7> and X have the meaning as cited in the description and the claims. Said compounds are useful as DPP-lV inhibitors. The invention also relates to the preparation of such compounds as well as the production and use thereof as medicament.
[EN] HETEROCYCLIC COMPOUNDS, METHODS OF MAKING THEM AND THEIR USE IN THERAPY<br/>[FR] COMPOSES HETEROCYCLIQUES, PROCEDES DE PRODUCTION DE CEUX-CI ET UTILISATION DE CEUX-CI DANS UN TRAITEMENT
申请人:AFFINIUM PHARM INC
公开号:WO2004052890A1
公开(公告)日:2004-06-24
In part, the present invention is directed to antibacterial compounds of formula (I) wherein A is a bicyclic heteroaryl ring or a tricyclic ring and R2 is an heterocyclic residue; L is a bond, or L is alkyl, alkenyl or cycloalkyl.
exploration introduced five-member aromatic heterocycles as linkers to attach an aryl group as the side chain. Our work led to the discovery of a number of BTZ derived compounds with potent antitubercularactivity. The optimized compounds 6 and 38 exhibited MIC 47 and 30 nM, respectively. Compared to PBTZ169, both compounds displayed increased aqueous solubility and higher stability in human liver microsomes
Compounds of the formula (I):
were synthesized. In at least one embodiment, they were found to down-regulate or inhibit the expression or function of the IGF-1 receptor.