N-Carbobenzoyl-DL-valine

Its carbobenzoyl (CBZ) group protects the amino functionality of valine during chemical reactions, allowing selective transformations without unwanted side reactions. One notable application of N‑Carbobenzoyl‑DL‑valine is in the synthesis of valganciclovir, an antiviral prodrug used to treat cytomegalovirus (CMV) infections. In this pathway, N‑CBZ‑DL‑valine serves as a valine ester intermediate, which is later converted into the final API, valganciclovir, after deprotection and other reaction steps. Beyond valganciclovir, N‑Carbobenzoyl‑DL‑valine is also widely employed to synthesize other peptide-based APIs or compounds where introduction of a valine unit is required. N‑Carbobenzoyl‑DL‑valine (N‑CBZ‑DL‑valine) is a protected amino acid derivative often used as a chemical intermediate in pharmaceutical synthesis.