cis-4-Hydroxy-D-proline belongs to the class of organic compounds known as proline and derivatives. Proline and derivatives are compounds containing proline or a derivative thereof resulting from a reaction of proline at the amino group or the carboxyl group or from the replacement of any hydrogen of glycine by a heteroatom.

Thalidomide-O-amido-PEG4-C2-NH2 hydrochloride is a synthesized E3 ligase ligand-linker conjugate incorporating the Thalidomide-based cereblon ligand and a linker.

Lophine can be used in the synthesis of protein kinase inhibitors, calcium antagonists, strong Chemicalbook cardiac agents, and antitumor drugs.