(2s,4s)-1-t-butoxycarbonyl-2-(N-T-butoxycarbonyl-N-sulfamoylamino)methyl-4-mercapto-pyrrolidine

(2S,4S)-tert-butyl 2-((tert-butoxycarbonyl(sulfaMoyl)aMino)Methyl)-4-Mercaptopyrrolidine-1-carboxylate

(2S,4S)-2-[[(Aminosulfonyl)[(tert-butoxy)carbonyl]amino]methyl]-4-mercapto-1-pyrrolidinecarboxylic acid tert-butyl ester