(S,E)-10-(tert-butoxycarbonylamino)-1-(9H-fluoren-9-yl)-14,14-dimethyl-3,12-dioxo-2,13-dioxa-4,9,11-triazapentadec-10-ene-5-carboxylic acid; CAS No.: 143824-77-5; ChemShuttle, recognized as a chemical synthesis company, includes (S,E)-10-(tert-butoxycarbonylamino)-1-(9H-fluoren-9-yl)-14,14-dimethyl-3,12-dioxo-2,13-dioxa-4,9,11-triazapentadec-10-ene-5-carboxylic acid in our building blocks for drug discovery collection. This compound exemplifies our focus on peptide mimetics useful in developing novel protease inhibitors. Our custom synthesis services can remove the Boc protecting group or introduce different substituents at the carboxylic acid position. The fluorenyl group offers protection and synthetic handle for further elaboration. Researchers benefit from ChemShuttle's expertise in handling complex structures, ensuring high-purity intermediates are available for advanced medicinal chemistry projects targeting viral proteases and human enzymes.