An Improved Method for the Preparation of Protected (R)-2-Methylcysteine: Solution-Phase Synthesis of a Glutathione Analogue

作者：Masterson Douglas S^*; Kedrowski Brant L; Blair Amanda

来源：Synlett, 2010, (19): 2941-2943.

DOI：10.1055/s-0030-1259021

• amino acids
• asymmetric synthesis
• peptides
• glutathione
• bioorganic chemistry

A synthetic method for the preparation of (R)-2-methylcysteine that dramatically improves the overall yield of this important unnatural amino acid has been refined. The key steps in the preparation of (R)-2-methylcysteine were improved such that necessary intermediates were prepared in high yields and of sufficient purity to avoid the need for distillation or column chromatography. The ( R)-2-methylcysteine was prepared (> 90% ee) in appropriately protected form and used in a novel solution phase synthesis of a glutathione analogue.

• 出版日期2010-12