Application of cyanuric chloride-based six new chiral derivatizing reagents having amino acids and amino acid amides as chiral auxiliaries for enantioresolution of proteinogenic amino acids by reversed-phase high-performance liquid chromatography
作者:Ravi Bhushan、Shuchi Dixit
DOI:10.1007/s00726-011-0832-3
日期:2012.4
Six dichloro-s-triazine (DCT) reagents having l-Leu, d-Phg, l-Val, l-Met, l-Ala and l-Met-NH2 as chiral auxiliaries in cyanuric chloride were introduced for enantioseparation of 13 proteinogenic amino acids. Four other DCTs and six monochloro-s-triazine (MCT) reagents having amino acid amides as chiral auxiliaries were also synthesized. These 16 chiral derivatizing reagents (CDRs) were used for synthesis
六个二氯小号嗪(DCT)的试剂具有升-Leu,d -Phg,升-Val,升-Met,升-Ala和升-Met-NH 2如氰尿酰氯的手性助剂引入13蛋白原的对映体氨基酸。其他四双离合变速器和六一氯小号还合成了具有氨基酸酰胺作为手性助剂的β-三嗪(MCT)试剂。这16种手性衍生试剂(CDR)用于通过微波辐射合成所有13种分析物的非对映异构体,并通过反相高效液相色谱(RP-HPLC),使用C18柱和TFA水溶液的梯度洗脱混合物进行拆分和乙腈,在230 nm处有UV检测。使用微波辐射仅需60–90 s即可衍生化。与用氨基酸酰胺作为手性助剂制备的非对映体相比,使用氨基酸作为手性助剂的CDR制备的非对映异构体观察到更好的分离度和更低的保留时间。在使用DCT试剂制备的13种分析物的非对映异构体中,观察到了最佳分离度1 -Leu作为手性助剂,该CDR被进一步用于Lys,Tyr,His和Arg的衍生化,然后通