D-Proline

Founded in 2014, Shanghai Leju Biochem Co.,Ltd manufactures peptide synthesis building blocks and fine chemical intermediates under its own brand. Its catalog includes Fmoc-protected amino acids and dipeptide pseudoproline building blocks used in solid-phase peptide synthesis, PEGylated and lipidated side-chain reagents resembling those used in GLP-1 analog peptide manufacturing, and a wide range of small-molecule intermediates such as substituted boronic acids and esters, azabicyclic amines, and halogenated heterocycles. The company offers CMO contract manufacturing, and is categorized under prophylactic biological products, selling across Asia, North and South America, Western and Eastern Europe, Australasia, the Middle East and Africa.