This compound, N-(tert-butoxycarbonyl)glycine tert-butyl ester (Boc-Gly-OtBu), is a doubly protected form of glycine commonly used in peptide synthesis. The Boc group protects the amino group, while the OtBu ester protects the carboxyl group, preventing unwanted reactions during the synthesis process and ensuring the desired peptide sequence is achieved. It is particularly useful in solid-phase peptide synthesis (SPPS) where selective deprotection is required. Additionally, it is employed in the preparation of intermediates for pharmaceutical compounds, contributing to the development of drugs and bioactive molecules. Its stability under various reaction conditions makes it a valuable tool in organic and medicinal chemistry research.