L-Cycloserin

L-Cycloserin is the enantiomeric counterpart of Cycloserine, featuring a pyrrolidine ring with a beta-amino alcohol configuration. Its chiral center exhibits opposite stereochemistry relative to the parent drug, resulting in distinct pharmacological inertness. Structurally, it contains a hydroxyl group at C-4 and an amino group at C-3, forming a cyclic amidine-like motif. This compound arises as a synthetic byproduct during enantioselective resolution processes of Cycloserine. It serves as an HPLC reference standard for enantiomeric purity profiling in Cycloserine API batches.