Novel Inhibitors of Erm Methyltransferases from NMR and Parallel Synthesis
摘要:
The Erm family of methyltransferases confers resistance to the macrolide-lincosamide-streptogramin type B (MLS) antibiotics through the methylation of 23S ribosomal RNA. Upon the methylation of RNA, the MLS antibiotics lose their ability to bind to the ribosome and exhibit their antibiotic activity. Using an NMR-based screen, we identified a series of triazine-containing compounds that bind weakly to ErmAM. These initial lead compounds were optimized by the parallel synthesis of a large number of analogues, resulting in compounds which inhibit the Erm-mediated methylation of rRNA in the low micromolar range. NMR and X-ray structures of enzyme/inhibitor complexes reveal that the inhibitors bind to the S-adenosylmethionine binding site on the Erm protein. These compounds represent novel methyltransferase inhibitors that serve as new leads for the reversal of Erm-mediated MLS antibiotic resistance.
Triazine and pyrimidine based ROCK inhibitors with efficacy in spontaneous hypertensive rat model
摘要:
The pro. le of a series of triazine and pyrimidine based ROCK inhibitors is described. An initial binding mode was established based on a homology model and the proposed interactions are consistent with the observed SAR. Compounds from the series are potent in a cell migration assay and possess a favorable kinase selectivity. In vivo activity was demonstrated for compound 1A in a spontaneous hypertensive rat model. (C) 2009 Published by Elsevier Ltd.
Novel Inhibitors of Erm Methyltransferases from NMR and Parallel Synthesis
作者:Philip J. Hajduk、Jürgen Dinges、Jeffrey M. Schkeryantz、David Janowick、Michele Kaminski、Michael Tufano、David J. Augeri、Andrew Petros、Vicki Nienaber、Ping Zhong、Rachel Hammond、Michael Coen、Bruce Beutel、Leonard Katz、Stephen W. Fesik
DOI:10.1021/jm990293a
日期:1999.9.1
The Erm family of methyltransferases confers resistance to the macrolide-lincosamide-streptogramin type B (MLS) antibiotics through the methylation of 23S ribosomal RNA. Upon the methylation of RNA, the MLS antibiotics lose their ability to bind to the ribosome and exhibit their antibiotic activity. Using an NMR-based screen, we identified a series of triazine-containing compounds that bind weakly to ErmAM. These initial lead compounds were optimized by the parallel synthesis of a large number of analogues, resulting in compounds which inhibit the Erm-mediated methylation of rRNA in the low micromolar range. NMR and X-ray structures of enzyme/inhibitor complexes reveal that the inhibitors bind to the S-adenosylmethionine binding site on the Erm protein. These compounds represent novel methyltransferase inhibitors that serve as new leads for the reversal of Erm-mediated MLS antibiotic resistance.
Triazine and pyrimidine based ROCK inhibitors with efficacy in spontaneous hypertensive rat model
作者:Koc-Kan Ho、James R. Beasley、Laura Belanger、Darcey Black、Jui-Hsiang Chan、David Dunn、Bing Hu、Anthony Klon、Steven G. Kultgen、Michael Ohlmeyer、Susan M. Parlato、Peter C. Ray、Quynhchi Pham、Yajing Rong、Andrew L. Roughton、Tiffany L. Walker、Jane Wright、Kai Xu、Yan Xu、Limei Zhang、Maria Webb
DOI:10.1016/j.bmcl.2009.09.046
日期:2009.11
The pro. le of a series of triazine and pyrimidine based ROCK inhibitors is described. An initial binding mode was established based on a homology model and the proposed interactions are consistent with the observed SAR. Compounds from the series are potent in a cell migration assay and possess a favorable kinase selectivity. In vivo activity was demonstrated for compound 1A in a spontaneous hypertensive rat model. (C) 2009 Published by Elsevier Ltd.