H-Ser(OtBu)-Asp(OtBu)-Tyr(OtBu)-Ser(OtBu)-Ile-Aib-Leu-OMe is a protected heptapeptide used in peptide synthesis. It consists of serine (Ser), aspartic acid (Asp), tyrosine (Tyr), and isoleucine (Ile), along with α-aminoisobutyric acid (Aib) and leucine (Leu), with OtBu (tert-butyl) groups protecting the hydroxyl groups of serine, aspartic acid, and tyrosine. The peptide ends with a methyl ester (OMe) group at the C-terminus, allowing for further modifications or coupling. This peptide is designed for controlled reactivity and stability, and is useful in applications such as peptide synthesis, drug design, and functional studies of peptide interactions.