80110-73-2Relevant articles and documents
Preparation of Constrained Unnatural Aromatic Amino Acids via Unsaturated Diketopiperazine Intermediate
Mollica, Adriano,Costante, Roberto,Mirzaie, Sako,Carradori, Simone,Macedonio, Giorgia,Stefanucci, Azzurra,Novellino, Ettore
, p. 2106 - 2110 (2016)
Unnatural aromatic amino acids are useful tools in drug discovery, since their insertion in bioactive peptide sequences can change the side chains spatial orientation, the backbone conformation and above all, their bioactivity. In this communication, we propose a straightforward method to synthesize 2′,6′-dimethyl-tyrosine and 2′,6′-dimehylphenyl-alanine derivatives as handling building blocks for peptide synthesis via unsaturated diketopiperazine (DKP) intermediate.
A practical and convenient Blanc-type chloromethylation catalyzed by zinc chloride under solvent-free conditions
Tang, Jian,Liu, Hongtao,He, Kailun,Zhang, Xingxian
supporting information, p. 925 - 932 (2019/03/17)
Chloromethylation of various aromatic hydrocarbons and substituted phenolic derivatives with dimethoxymethane and chlorosulfonic acid was carried out in the presence of 10 mol% of ZnCl2 in a mild and efficient manner under solvent-free conditions. In addition, 2,6-dimethyltyrosine was synthesized in high yield via this protocol.
Resolution method and application of 6- 2 sphingosahexanoic acid ester (I) as well as preparation method and application thereof (by machine translation)
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Paragraph 0043-0044, (2019/11/29)
The preparation method comprises the following steps 2: 6 - 2 preparing the racemic mixture of the dimethyl-L-tyrosine 2 through dynamic kinetic resolution, 6 - and then carrying out 2 dynamic kinetic resolution to obtain the compound salt 6 - of L-tyrosi