Versatile and Stereoselective Syntheses of Orthogonally Protected β-Methylcysteine and β-Methyllanthionine
作者:Radha S. Narayan、Michael S. VanNieuwenhze
DOI:10.1021/ol0507930
日期:2005.6.1
activity against Gram-positive bacteria. As part of our research effort directed toward the synthesis and mechanistic study of the lantibiotic peptide mersacidin (1), we report stereoselective syntheses of orthogonally protected beta-methylcysteine (beta-MeCys) and beta-methyllanthionine (beta-MeLan), two key nonnatural amino acid components of the mersacidin architecture.
[反应:见正文] 羊毛硫抗生素是一类含有羊毛硫氨酸(和/或β-甲基羊毛硫氨酸)的肽,对革兰氏阳性菌具有抗菌活性。作为我们针对羊毛硫抗生素肽美酸丁 (1) 的合成和机理研究工作的一部分,我们报告了正交保护的 β-甲基半胱氨酸 (β-MeCys) 和 β-甲基羊毛硫氨酸 (β-MeLan) 这两种关键的非天然物质的立体选择性合成。 mersacidin 结构的氨基酸成分。