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10.1016/j.bmcl.2015.03.033 http://scihub22266oqcxt.onion/10.1016/j.bmcl.2015.03.033 C4408258!4408258!25824664     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Bioorg+Med+Chem+Lett 2015 ; 25 (9): 1920-4 Nephropedia Template TP {{tp|p=25824664|t=2015. Three new fusidic acid derivatives and their antibacterial activity |pdf=|usr=}}{{25824664}} gab.com Text Three new fusidic acid derivatives and their antibacterial activity JO: Bioorg Med Chem Lett http://www.kidney.de/pget.php?&tw=1&pmid=25824664 #FOAvip Two steroid acids, cephalosporin P1 and isocephalosporin P1, were isolated from Hapsidospora irregularis FERM BP-2511. These compounds are structurally related to fusidic acid. Their NMR data were completely assigned on the basis of the 2D NMR spectra. Incubation of these two compounds with Microbaterium oxydans CGMCC 1788 in Luria-Bertani broth yielded the same set of three new 3-dehydrogenated products, 3-keto-isocephalosporin P1, 3-keto-cephalosporin P1 and 6-deacetyl-3-keto-cephalosporin P1. The final pH of the bacterial culture was 9.0. Incubation of 3-keto-isocephalosporin P1 or 3-keto-cephalosporin P1 in Tris-HCl buffer (pH 9.0) revealed that these two compounds can convert to each other by shifting the acetyl group between C-6 and C-7. The acetyl group at C-6 or C-7 can also be removed by hydrolysis to yield the minor product 6-deacetyl-3-keto-cephalosporin P1. These fusidic acid derivatives were tested for the antibacterial activity against the Gram-positive pathogen Staphylococcus aureus. 3-Keto-cephalosporin P1 showed the highest activity among the five compounds, with a minimal inhibition concentration (MIC) of 4 ?g/mL, which is more potent than the substrate cephalosporin P1. Both cephalosporin P1 and 3-keto-cephalosporin P1 were active against methicillin-resistant S. aureus, with the same MIC of 8 ?g/mL. Twit Text FOAVip Three new fusidic acid derivatives and their antibacterial activity ????Bioorg Med Chem Lett http://www.kidney.de/pget.php?&tw=1&pmid=25824664 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25824664 #FOAvip English Wikipedia <ref>{{Cite pmid|25824664}}</ref> Three new fusidic acid derivatives and their antibacterial activity #MMPMID25824664 Zhang S; Wang S; Zhang Q; Chang CWT; Zhan J Bioorg Med Chem Lett 2015[May]; 25 (9): 1920-4 PMID25824664show ga Two steroid acids, cephalosporin P1 and isocephalosporin P1, were isolated from Hapsidospora irregularis FERM BP-2511. These compounds are structurally related to fusidic acid. Their NMR data were completely assigned on the basis of the 2D NMR spectra. Incubation of these two compounds with Microbaterium oxydans CGMCC 1788 in Luria-Bertani broth yielded the same set of three new 3-dehydrogenated products, 3-keto-isocephalosporin P1, 3-keto-cephalosporin P1 and 6-deacetyl-3-keto-cephalosporin P1. The final pH of the bacterial culture was 9.0. Incubation of 3-keto-isocephalosporin P1 or 3-keto-cephalosporin P1 in Tris-HCl buffer (pH 9.0) revealed that these two compounds can convert to each other by shifting the acetyl group between C-6 and C-7. The acetyl group at C-6 or C-7 can also be removed by hydrolysis to yield the minor product 6-deacetyl-3-keto-cephalosporin P1. These fusidic acid derivatives were tested for the antibacterial activity against the Gram-positive pathogen Staphylococcus aureus. 3-Keto-cephalosporin P1 showed the highest activity among the five compounds, with a minimal inhibition concentration (MIC) of 4 ?g/mL, which is more potent than the substrate cephalosporin P1. Both cephalosporin P1 and 3-keto-cephalosporin P1 were active against methicillin-resistant S. aureus, with the same MIC of 8 ?g/mL. äThree new fusidic acid derivatives and their antibacterial activity (epmc).pdf DeepDyve Pubget Overpricing