Clay Column Chromatography for Optical Resolution: A Series of Derivatized Amino Acids
作者:Akihiko Yamagishi、Shohei Yamamoto、Kazuyoshi Takimoto、Kenji Tamura、Masumi Kamon、Fumi Sato、Hisako Sato
DOI:10.1246/bcsj.20220077
日期:2022.6.15
Chromatographic resolution of a series of derivatized amino acids was attempted on a column packed with an ion-exchange adduct of Δ-[Ru(phen)3]2+ (phen = 1,10-phenanthroline) and synthetic hectorite. An amino acid was modified to N-3, 5-dinitrobenzoyl amino acid methyl ester (denoted by DNB-aa-me). For aa = Ala, Phe, Leu, Ile, Ser, Val, Thr, Tyr, Asp and Glu, racemic DNB-aa-me was resolved nearly to
在填充有 Δ-[Ru(phen) 3 ] 2+ (phen = 1,10-phenanthroline) 和合成锂蒙脱石的离子交换加合物的色谱柱上尝试了一系列衍生氨基酸的色谱分离。将氨基酸修饰为N -3, 5-二硝基苯甲酰基氨基酸甲酯(记作DNB-aa-me)。对于 aa = Ala、Phe、Leu、Ile、Ser、Val、Thr、Tyr、Asp 和 Glu,在用甲醇洗脱时,外消旋 DNB-aa-me 几乎被分离到基线分离。对于 aa = Trp 和 His,外消旋 DNB-aa-me 部分分离。Pro 和 Lys 没有达到分辨率。通过固态振动圆二色光谱研究了手性鉴别的机理。