(2S)-3-[(E)-[amino(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonamido)methylidene]amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid
(2S)-3-[(E)-[amino(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonamido)methylidene]amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid