Bisphosphonic acids as effective inhibitors ofMycobacterium tuberculosisglutamine synthetase
摘要:
Inhibition of glutamine synthetase (GS) is one of the most promising strategies for the discovery of novel drugs against tuberculosis. Forty-three bisphosphonic and bis-H-phosphinic acids of various scaffolds, bearing aromatic substituents, were screened against recombinant GS from Mycobacterium tuberculosis. Most of the studied compounds exhibited activities in micromolar range, with N-(3,5-dichlorophenyl)-2-aminoethylidenebisphoshonic acid, N-(3,5difluorophenyl)-2-aminoethylidene-bisphoshonic acid and N-(3,4-dichlorophenyl)-1-hydroxy1,1-ethanebisphosphonic acid showing the highest potency with kinetic parameters similar to the reference compound - L-methionine-S-sulfoximine. Moreover, these inhibitors were found to be much more effective against pathogen enzyme than against the human ortholog. Thus, with the bone-targeting properties of the bisphosphonate compounds in mind, this activity/selectivity profile makes these compounds attractive agents for the treatment of bone tuberculosis.
Diphosphonsäure-Derivate und diese enthaltende pharmazeutische Präparate
申请人:SCHERING AKTIENGESELLSCHAFT
公开号:EP0085321A2
公开(公告)日:1983-08-10
Diphosphonsäure-Derivate der allgemeinen Formel I
worin
n die Ziffern 0, 1 oder 2 bedeuten und worin
R, ein Wasserstoffatom oder eine 1 bis 4 Kohlenstoffatome enthaltende Alkylgruppe
R2 ein Wasserstoffatom, ein Alkalimetallatom, ein Erdalkalimetallatom oder eine 1 bis 4 Kohlenstoffatome enthaltende Alkylgruppe und Ar einen gegebenenfalls durch Fluoratome, Chloratome, 1 bis 4 Kohlenstoffatome enthaltende Alkylgruppen oder 1 bis 4 Kohlenstoffatome enthaltende Alkoxygruppen substituierten Phenylrest, einen Naphthylrest, einen Biphenylrest oder einen Thienylrest darstellen, sind pharmakologisch wirksame Substanzen.
通式 I 的二膦酸衍生物
其中
n 是数字 0、1 或 2,其中
R 是氢原子或含有 1 至 4 个碳原子的烷基
R2 代表氢原子、碱金属原子、碱土金属原子或含 1 至 4 个碳原子的烷基,Ar 代表可选被氟原子、氯原子、含 1 至 4 个碳原子的烷基或含 1 至 4 个碳原子的烷氧基、萘基、联苯基或噻吩基取代的苯基。
US4473560A
申请人:——
公开号:US4473560A
公开(公告)日:1984-09-25
Bisphosphonic acids as effective inhibitors of<i>Mycobacterium tuberculosis</i>glutamine synthetase
Inhibition of glutamine synthetase (GS) is one of the most promising strategies for the discovery of novel drugs against tuberculosis. Forty-three bisphosphonic and bis-H-phosphinic acids of various scaffolds, bearing aromatic substituents, were screened against recombinant GS from Mycobacterium tuberculosis. Most of the studied compounds exhibited activities in micromolar range, with N-(3,5-dichlorophenyl)-2-aminoethylidenebisphoshonic acid, N-(3,5difluorophenyl)-2-aminoethylidene-bisphoshonic acid and N-(3,4-dichlorophenyl)-1-hydroxy1,1-ethanebisphosphonic acid showing the highest potency with kinetic parameters similar to the reference compound - L-methionine-S-sulfoximine. Moreover, these inhibitors were found to be much more effective against pathogen enzyme than against the human ortholog. Thus, with the bone-targeting properties of the bisphosphonate compounds in mind, this activity/selectivity profile makes these compounds attractive agents for the treatment of bone tuberculosis.