First stereoselective synthesis of an optically pure β-substituted histidine: (2S,3S)-β-methylhistidine
作者:Sihe Wang、Xuejun Tang、Victor J Hruby
DOI:10.1016/s0040-4039(99)02223-6
日期:2000.2
We report the first example of the asymmetric synthesis of the β-substituted histidine, (2S,3S)-β-methylhistidine. A key in the synthesis is the use of the protecting group, 2-mesitylenesulfonyl (Mts-), for the imidazole ring to minimize epimerization during synthesis.
我们报道了β-取代的组氨酸,(2 S,3 S)-β-甲基组氨酸的不对称合成的第一个例子。合成中的关键是对咪唑环使用保护基2-均三亚甲基磺酰基(Mts-),以最大程度地减少合成过程中的差向异构化。