tert-Butyl (4-(oxazol-5-yl)benzyl)carbamate is a Boc-protected primary amine building block derived from 4-(oxazol-5-yl)benzylamine. The tert-butyloxycarbonyl (Boc) group protects the benzylic amine, facilitating selective functionalization of the oxazole-containing scaffold in multi-step organic synthesis, especially for pharmaceutical intermediates and drug discovery. The oxazol-5-yl moiety serves as a heterocyclic pharmacophore with potential biological activity. Boc deprotection occurs readily under mild acidic conditions (e.g., TFA in DCM), liberating the free amine for further elaboration. This compound is valuable in medicinal chemistry for constructing complex molecules while avoiding side reactions at the amine.