Tos-Lys(Boc)-OH is a protected lysine derivative in which the ε-amino group is protected as a tosyl (Tos) sulfonamide and the α-amino group is protected as a Boc carbamate, with the carboxylic acid remaining unprotected as a free acid for further coupling chemistry. The molecule contains both a sulfonamide and a carbamate protecting group, along with the amino-acid backbone bearing a side-chain -(CH2)4- sulfonamide substituent, and its stereochemistry is not specified in the provided name. In peptide synthesis and amino-acid derivative preparation, this orthogonally protected Lys building block supports stepwise chemoselective functionalization by masking the α- and ε-amino functionalities while retaining the carboxyl group for activation and formation of amide bonds.
3. Emerging applications of nanotechnology for diagnosis and therapy of disease: a review
5. Urinary Metabolites Associated with Blood Pressure on a Low-or High-Sodium Die
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.
Read More