Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (10): 20260117.doi: 10.7503/cjcu20260117

• Organic Chemistry • Previous Articles     Next Articles

Integrated Tag-assisted Continuous-flow Peptide Synthesis in Green Solvents: Circumventing Solubility Bottlenecks and Minimizing Process Mass Intensity

YAN Yangli, LI Jinyu, QIN Shicheng, SU Xianbin()   

  1. College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
  • Received:2026-03-21 Online:2026-10-10 Published:2026-05-09
  • Contact: SU Xianbin E-mail:davidsu@njtech.edu.cn
  • Supported by:
    the Priority Academic Program Development of Jiangsu Higher Education Institutions, China(PAPD38701021)

Abstract:

This study reports an integrated tag-assisted continuous-flow liquid-phase peptide synthesis(CF-TAPS) platform based on a green solvent system, achieving a 3.7-fold reduction in process mass intensity(PMI) relative to the solid-phase peptide synthesis(SPPS) benchmark. The core innovation lies in a "dual-flow intensification" framework: first, a fixed-bed reactor was utilized for the efficient continuous-flow hydrogenation of the hydrophobic amino-tag carrier(BTPM), establishing the material foundation for end-to-end automation; second, a tunable binary solvent system(EA/DMSO) was synergized with a static-mixer-incorporated tubular reactor(SMTR) to ensure robust solvation and ultrafast reaction kinetics. This modular architecture integrated automated in-line membrane separation, transforming emulsion-prone washing into a high-throughput workflow and significantly compressing cycle time for coupling(52 s) and deprotection(38 s). The utility of this tag-based flow strategy was validated through the total synthesis of cell-penetrating peptide 5R, requiring only 1.05~1.2 mol of amino acids. Notably, the platform achieved a transformative 4-fold reduction in organic solvent consumption(OSC), providing a sustainable paradigm for green peptide manufacturing that effectively integrates the high atom economy of liquid-phase strategies with the automated industrial scalability of continuous processes.

Key words: Continuous-flow chemistry, Liquid-phase peptide synthesis(LPPS), Soluble tags, In-line membrane separation, Process mass intensity(PMI)

CLC Number: 

TrendMD: