(R)-Methyl 2-amino-2-cyclobutylacetate is primarily used as a chiral building block in organic synthesis, particularly in the pharmaceutical industry. Its cyclobutyl ring structure and chiral center make it a valuable intermediate for the development of enantiomerically pure compounds. It is often employed in the synthesis of complex molecules, including active pharmaceutical ingredients (APIs) and biologically active compounds. The ester and amino functional groups in its structure allow for further chemical modifications, enabling its use in the creation of peptides, peptidomimetics, and other drug candidates. Additionally, its unique structure contributes to the exploration of new therapeutic agents, particularly in areas such as antiviral, anticancer, and central nervous system (CNS) drug research.