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Quorum sensing is the process by which bacteria communicate with each other to regulate the expression of certain genes in a cell density-dependent manner. One group of signalling molecules used in this process are the quorum sensing peptides, which are primarily produced by Gram-positive bacteria. Aside from their known role in bacterial physiology, it was recently found that these peptides are also...
Mono-, di-, and tetramethylglycolurils were synthesized, isolated, and purified. For the first time, the cis- and the trans-isomers of N,N-dimethylglycoluril were isolated as individual substances by semi-preparative HPLC method. The structures of the synthesized compounds were confirmed by 1H NMR, 13C NMR, and HR–HPLC–MS. The EI mass spectra of individual substances were obtained by the GC–MS. Retention...
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