Boc-Tyr(tBu)-Aib-Glu(tBu)-Gly-Thr-Phe-Thr(tBu)-OH is a protected heptapeptide used in peptide synthesis. It includes tyrosine (Tyr), α-aminoisobutyric acid (Aib), glutamic acid (Glu), glycine (Gly), threonine (Thr), and phenylalanine (Phe), with Boc (tert-Butyloxycarbonyl) and tBu (tert-butyl) groups protecting the amino and hydroxyl groups, respectively. The peptide ends with a free -OH group for further modifications or coupling. This heptapeptide is designed for controlled reactivity and stability in synthesis and can be used for studying peptide conformations or in designing bioactive compounds.