TITLE:
Development of a Reversed-Phase Chiral HPLC Method for Concurrent Chiral, Achiral, Assay, and Identification Analysis of Boc-L-Valine
AUTHORS:
Hua Zhao, Jiangwei Li, Frank Wu
KEYWORDS:
Boc-L-Valine, Reversed-Phase Chiral HPLC, Polysaccharide Chiral Stationary Phase, Achiral Amino-Acid Impurities, Derivatization GC Benchmark
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.17 No.1,
January
21,
2026
ABSTRACT: Boc-protected amino acids, such as Boc-L-valine, are widely used as key starting materials in the synthesis of pharmaceutical drug substances, necessitating efficient and reliable analytical control strategies. In this work, a streamlined reversed-phase chiral HPLC method was developed for the comprehensive characterization of Boc-L-valine without the need for derivatization. The method enables simultaneous determination of chiral and achiral impurities, assay, and compound identification within a single analytical run. This integrated approach simplifies the analytical workflow, increases throughput, and significantly reduces overall method validation efforts. Moreover, the method provides a robust and versatile platform readily applicable to routine quality control and method development for other Boc-protected or Fmoc-protected amino acids.