This compound, 2-amino-3-[(tert-butyldiphenylsilyl)oxy]-2-methylpropan-1-ol, is a protected amino diol intermediate used in organic synthesis. The tert-butyldiphenylsilyl (TBDPS) group selectively protects the secondary hydroxyl at the 3-position, providing stability during multi-step reactions while leaving the primary alcohol at the 1-position and the amino group at the 2-position available for further transformations. This orthogonal protection strategy is valuable in the synthesis of pharmaceuticals, nucleoside analogs, sphingolipids, and other complex molecules requiring precise regiochemical control. The steric bulk of TBDPS also aids in regioselective reactions and facilitates the production of enantiomerically pure compounds.