Convenient, asymmetric synthesis of enantiomerically pure 2′,6′-dimethyltyrosine (DMT) via alkylation of chiral equivalent of nucleophilic glycine
作者:Xuejun Tang、Vadim A. Soloshonok、Victor J. Hruby
DOI:10.1016/s0957-4166(00)00250-0
日期:2000.7
Asymmetric synthesis of (S)-2′,6′-dimethyltyrosine (DMT) via reactions of 4′-benzyloxy-2′,6′-dimethylbenzyl bromide with Ni(II)-complexes of the chiral Schiff base of glycine with (S)-o-[N-(N-benzylprolyl)amino]benzophenone was developed. Inexpensive and readily available reagents and solvents involved, including recyclable chiral auxiliary, simplicity of the experimental procedures and high chemical
通过4'-苄氧基-2',6'-二甲基苄基溴与甘氨酸手性席夫碱的Ni(II)络合物与(S)的反应,不对称合成(S)-2',6'-二甲基酪氨酸(DMT)) - ø - [ ñ - (ñ -benzylprolyl)氨基]苯甲酮被开发。所涉及的廉价且容易获得的试剂和溶剂,包括可回收的手性助剂,简单的实验程序和高化学产率,使得该方法对于以克为单位制备目标氨基酸具有合成吸引力。