Used in peptide synthesis as a protected amino acid building block. The Teoc (2-(Trimethylsilyl)ethoxycarbonyl) group acts as an orthogonal protecting group for the amine function, allowing selective deprotection under mild conditions without affecting other common protecting groups. This makes it valuable in solid-phase and solution-phase synthesis of complex peptides. The L-Ile-Gly sequence represents a dipeptide fragment useful in constructing larger bioactive peptides. Commonly applied in pharmaceutical research and development of peptide-based drugs.