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Merck reports biocatalytic manufacturing route for oral macrocycle enlicitide

Company / institutional announcement · Merck

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Site published: 2026-11-03 · Updated: 2026-11-03

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What changed

Merck announced a Science publication describing large-scale biocatalytic synthesis of enlicitide. Engineered enzymes enable peptide-fragment formation, coupling, and macrocyclization, combined with crystallization-based purification. The work addresses manufacturing of a complex orally available macrocyclic peptide. It provides a process-development example rather than new clinical efficacy evidence or a universally transferable route for every macrocycle.

Why it may matter

Connects macrocycle development with scalable synthesis and crystallization, informing process strategy and evaluation of manufacturing capabilities.

The interpretation above is analysis, not a conclusion attributed to the original source.

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Oral cyclic peptides

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