Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.
合成了非天然氨基酸3-(4-噻唑基)-D,L-丙氨酸盐酸盐以及三个中间体,其结构分别通过红外光谱、核磁共振、元素分析、熔
等测试手段得

。
层比较法测量
物质
的

类是以什么分离开的?- 
有不同的
的金属。


