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Search for "Escherichia coli" in Full Text gives 158 result(s) in Beilstein Journal of Organic Chemistry.
Carbamate derivatives and sesquiterpenoids from the South China Sea gorgonian Melitodes squamata
Beilstein J. Org. Chem. 2012, 8, 170–176, doi:10.3762/bjoc.8.18
- 1, 2, 6, and 7 have not been previously reported. The cytotoxicity of 1–9 against human malignant melanoma A735 and cervical carcinoma HeLa cell lines, and the antibacterial activity of 1–5 and 7 towards bacteria Escherichia coli, Bacillus subtilis and Micrococcus luteus were evaluated. The possible
- by MTT assay. The results show that 1–9 does not exhibit cytotoxicity against A735 and HeLa cell lines with IC50 > 200 μg/mL. Antibacterial activity of compounds 1–5 at a concentration of 25 μg/disc (diameter 6 mm) was measured against bacteria Escherichia coli, Bacillus subtilis, and Micrococcus
Synthesis and characterization of new diiodocoumarin derivatives with promising antimicrobial activities
Beilstein J. Org. Chem. 2011, 7, 1688–1696, doi:10.3762/bjoc.7.199
- activity, better than the standard ampicillin, against two species of Gram-positive bacteria, Staphylococcus aureus (NCTC-7447), Bacillus cereus (ATCC-14579) and two Gram-negative bacteria, Escherichia coli (NCTC-10410) and Serratia marcescens (IMRU-70), while the same compounds showed moderate antifungal
- , compared with the standards ampicillin and calforan. In addition, compounds 2 and 5 in the series were found to be inactive against Escherichia coli (NCTC-10410), while compound 11 was inactive against Serratia marcescens (IMRU-70). An investigation of the structure–activity relationship (SAR) revealed
- bacteria, namely Staphylococcus aureus (NCTC-7447), Bacillus cereus (ATCC-14579), and two Gram-negative bacteria, namely Escherichia coli (NCTC-10410), Serratia marcescens (IMRU-70); and against two species of fungi, namely Aspergillus fumigatus (MTCC-3008) and Candida albicans (MTCC-227). The tested
Marilones A–C, phthalides from the sponge-derived fungus Stachylidium sp.
Beilstein J. Org. Chem. 2011, 7, 1636–1642, doi:10.3762/bjoc.7.192
- (Escherichia coli, Bacillus megaterium), antifungal (Mycotypha microspora, Eurotium rubrum, and Microbotryum violaceum), and antialgal (Chlorella fusca) assays as described before [17][18]. The inhibition of the following panel of proteases inhibition assays (chymotrypsin, trypsin, the protease elastase HLE
Synthesis, reactivity and biological activity of 5-alkoxymethyluracil analogues
Beilstein J. Org. Chem. 2011, 7, 678–698, doi:10.3762/bjoc.7.80
- tested for their antimicrobial activity against standard reference gram-positive and gram-negative bacterial strains such as Enterococcus faecalis CCM 4224, Staphylococcus aureus CCM 3953, Escherichia coli CCM 3954 and Pseudomonas aeruginosa CCM 3955 and against gram-positive and gram-negative bacteria
- obtained from clinical material of patients treated at the University Hospital in Olomouc (methicillin resistant Staphylococcus aureus - MRSA, Staphylococcus haemolyticus, Escherichia coli and Pseudomonas aeruginosa) with resistance to currently used fluoroquinolones. Only the octyl and nonyl derivatives
Michael-type addition of azoles of broad-scale acidity to methyl acrylate
Beilstein J. Org. Chem. 2011, 7, 173–178, doi:10.3762/bjoc.7.24
- . Other reaction conditions including enzymatic catalysis (Bacillus subtilis) [13], zinc-active-site acylases from Escherichia coli and Aspergillus oryzae [23] as well as ultrasonic irradiation in the presence of montmorillonite [14] have also been reported. In addition, there has been several recent
Pyridinium based amphiphilic hydrogelators as potential antibacterial agents
Beilstein J. Org. Chem. 2010, 6, 859–868, doi:10.3762/bjoc.6.101
- (Bacillus subtilis and Micrococcus luteus) and Gram-negative (Escherichia coli and Klebsiella aerogenes) bacteria. Minimum inhibitory concentrations (MIC), the lowest amphiphile concentration at which no viable bacterial cell is present, are presented in Table 1. Both 1 and 2 were found to be effective in
- Escherichia coli. Interestingly, the pyridinium based amphiphilic hydrogelators showed antibacterial activity against both type of bacteria which is in contrast to the antibacterial activity of conventional quaternary cationic amphiphiles which are, in general, ineffective against Gram-negative bacteria. The
- against representative Gram-positive and Gram-negative bacteria. Gram-positive bacteria used in the present study were Bacillus subtilis and Micrococcus luteus. Gram-negative bacteria investigated include Escherichia coli and Klebsiella aerogenes. Investigations of antibacterial activities were performed
En route to photoaffinity labeling of the bacterial lectin FimH
Beilstein J. Org. Chem. 2010, 6, 810–822, doi:10.3762/bjoc.6.91
- , Uppsala Biomedical Center, SE-75124 Uppsala, Sweden 10.3762/bjoc.6.91 Abstract Mannose-specific adhesion of Escherichia coli bacteria to cell surfaces, the cause of various infections, is mediated by a fimbrial lectin, called FimH. X-ray studies have revealed a carbohydrate recognition domain (CRD) on
- ) [1]. It has become our goal to utilize this methodology for the investigation of carbohydrate binding of the bacterial lectin FimH. The protein FimH is found on the tips of type 1 fimbriae, long adhesive filamentous appendages on the surface of many bacteria, such as Escherichia coli [2][3][4][5]. In
Synthesis and glycosidase inhibitory activity of new hexa- substituted C8-glycomimetics
Beilstein J. Org. Chem. 2005, 1, No. 12, doi:10.1186/1860-5397-1-12
- and human placenta, α-D-galactosidases from coffee beans and Escherichia coli, β-D-galactosidases from Escherichia coli, bovine liver, Aspergillus niger and Aspergillus orizae, α-N-acetylgalactosaminidase from chicken liver, β-N-acetylglucosaminidases from Jack bean, bovine epididymis A and bovine
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