Chan, Hwai-Chien; Bueno, Bianca; Le Roch, Adrien; Gagnon, Alexandre published their research in Chemistry – A European Journal in 2021. The article was titled 《Copper-promoted N-arylation of the imidazole side chain of protected histidine by using triarylbismuth reagents》.SDS of cas: 7524-52-9 The article contains the following contents:
The N-arylation of the side chain of histidine by using triarylbismuthines is reported. The reaction is promoted by copper(II) acetate in dichloromethane at 40°C under oxygen in the presence of diisopropylethylamine and 1,10-phenanthroline and allows the transfer of aryl groups with substituents at any position of the aromatic ring. The reaction shows excellent functional group tolerance and is applicable to dipeptides where the histidine is located at the N terminus. A histidine-guided backbone N-H arylation was observed in dipeptides where the histidine occupies the C terminus. In the experiment, the researchers used H-Trp-OMe.HCl(cas: 7524-52-9SDS of cas: 7524-52-9)
H-Trp-OMe.HCl(cas:7524-52-9) is one of amino acid derivatives. Amino acid derivatives represent an important category of skin penetration promoters. These compounds possess hydrophobic chains attached to an amino acid headgroup via a biodegradable ester bond. Due to the amphiphilic nature of these derivatives, it is possible for them to enter into the SC lipid barrier and significantly disorganize skin membrane lipids.SDS of cas: 7524-52-9
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