Boc-Met-Gly-OSu is a Boc-protected dipeptide activated ester in which methionine and glycine are preassembled and the C-terminal carboxyl is converted to an N-hydroxysuccinimide (OSu) ester. This structure makes it a practical peptide coupling intermediate for building amide bonds under conditions commonly used in peptide synthesis and peptide conjugation workflows. The Boc group provides an acid-stable N-protection strategy for controlled downstream coupling and segment assembly, while the OSu ester offers an activated leaving group for efficient formation of peptide-like linkages.
1. Peptide Segment Coupling
Boc-Met-Gly-OSu is frequently used as a preactivated peptide segment for joining the Met-Gly motif to an incoming amino component during custom peptide synthesis. Researchers who perform solution-phase peptide assembly or segment condensation workflows rely on the OSu ester to promote amide bond formation with amines, enabling rapid conversion of the dipeptide into longer peptide chains. The Boc protection on the N-terminus helps maintain the segment's integrity during coupling steps, supporting sequential assembly strategies where controlled deprotection and re-coupling are required.
2. Peptide Conjugation Chemistry
Boc-Met-Gly-OSu is also applied in peptide conjugation development where an activated ester format is advantageous for attaching peptide fragments to amine-bearing partners. Chemical biology teams preparing peptide conjugates for assay development or material functionalization often choose OSu-activated intermediates to drive efficient coupling to primary amines, including those presented on linkers, biomolecule scaffolds, or surface-reactive amine groups. The Met-Gly composition provides a defined peptide handle that can be carried through conjugation workflows while the Boc-protected N-terminus supports stepwise processing.
3. Protected Dipeptide Intermediate Synthesis
Boc-Met-Gly-OSu serves as a practical pharmaceutical intermediate for downstream peptide-like intermediate manufacturing, particularly when a defined Met-Gly unit is needed as a building block. Process development chemists and peptide intermediate suppliers use activated dipeptide esters to streamline procurement of consistent, preassembled fragments for further transformations into longer sequences or specialized derivatives. The combination of Boc protection and OSu activation supports a workflow in which the dipeptide is handled as a stable intermediate and then converted into the next coupling product without requiring separate activation of the C-terminal carboxyl group at the point of use.
1. Low bone turnover and low BMD in Down syndrome: effect of intermittent PTH treatment
3. Emerging applications of nanotechnology for diagnosis and therapy of disease: a review
5. Emu oil in combination with other active ingredients for treating skin imperfections
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.
Read More