Glycine derivatives are chemical compounds that are derived from the amino acid glycine. These derivatives can have various functional groups attached to the glycine structure, which can alter their properties and biological activities. They are often used in pharmaceuticals, agriculture, and food industries due to their ability to interact with biological systems. These compounds can serve as building blocks for more complex molecules or act as intermediates in chemical reactions. Some glycine derivatives are known for their roles in neurotransmission and metabolism, making them important in the study of biochemistry and pharmacology.