This compound, 2-(2-((tert-butoxycarbonyl)amino)-N-methylacetamido)acetic acid, is a protected dipeptide building block (Boc-Gly-N-methyl-Gly-OH) used in peptide synthesis. It incorporates the tert-butoxycarbonyl (Boc) protecting group on the N-terminal amino acid to prevent unwanted reactions during coupling steps, ensuring selective assembly of peptide chains. The Boc group provides stability under basic and neutral conditions and can be selectively deprotected under mild acidic conditions without disrupting the peptide backbone or other side chains. This makes it ideal for solid-phase peptide synthesis (SPPS) and the preparation of complex peptides, peptidomimetics, and protein analogs for pharmaceutical research, drug development, and biomaterials.