Sayer, James R.; Wallden, Karin; Koss, Hans; Allan, Helen; Daviter, Tina; Gane, Paul J.; Waksman, Gabriel; Tabor, Alethea B. published an article in 2021. The article was titled 《Design, synthesis, and evaluation of peptide-imidazo[1,2-a]pyrazine bioconjugates as potential bivalent inhibitors of the VirB11 ATPase HP0525》, and you may find the article in Journal of Peptide Science.COA of Formula: C9H19NO4 The information in the text is summarized as follows:
Helicobacter pylori (H. pylori) infections were implicated in the development of gastric ulcers and various cancers: however, the success of current therapies is compromised by rising antibiotic resistance. The virulence and pathogenicity of H. pylori is mediated by the type IV secretion system (T4SS), a multiprotein macromol. nanomachine that transfers toxic bacterial factors and plasmid DNA between bacterial cells, thus contributing to the spread of antibiotic resistance. A key component of the T4SS is the VirB11 ATPase HP0525, which is a hexameric protein assembly. The authors have previously reported the design and synthesis of a series of novel 8-amino imidazo[1,2-a]pyrazine derivatives as inhibitors of HP0525. In order to improve their selectivity, and potentially develop these compounds as tools for probing the assembly of the HP0525 hexamer, the authors have explored the design and synthesis of potential bivalent inhibitors. The authors used the structural details of the subunit-subunit interactions within the HP0525 hexamer to design peptide recognition moieties of the subunit interface. Different methods (cross metathesis, click chem., and cysteine-malemide) for bioconjugation to selected 8-amino imidazo[1,2-a]pyrazines were explored, as well as peptides spanning larger or smaller regions of the interface. The IC50 values of the resulting linker-8-amino imidazo[1,2-a]pyrazine derivatives, and the bivalent inhibitors, were related to docking studies with the HP0525 crystal structure and to mol. dynamics simulations of the peptide recognition moieties. The experimental part of the paper was very detailed, including the reaction process of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6COA of Formula: C9H19NO4)
tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) belongs to ethers.COA of Formula: C9H19NO4Although ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem