Used as a key chiral building block in the synthesis of nucleoside analogs, including antiviral and anticancer agents. Serves as a protected form of D-ribose in carbohydrate chemistry, enabling selective reactions at specific hydroxyl groups. Commonly employed in the preparation of modified sugars, nucleic acid components, and complex natural products where stereochemical control is essential. Its acetonide group provides stability and directs regioselective transformations during multi-step organic syntheses.