Modular Synthesis of Pantetheine and Phosphopantetheine

Abstract
D-Pantetheine and d-phosphopantetheine, precursors to coenzyme A, have been synthesized though a linear sequence from three modules (M1−M3) in 9 and 10 steps, respectively. These routes provide access to analogues of coenzyme A containing modified cystamines, β-alanines, and pantoic acid residues. All three modules were joined using conventional methods of peptide synthesis. The chiral component, M3, was derived from d-pantolactone.

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