(S)-2-Allyloxycarbonylamino-5-guanidino-pentanoic acid

(2S,3aS,7aS)-6-oxo-2,3,3a,4,5,6,7,7a-octahydroindole-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester

(2S,7aS)-6-oxo-2,3,5,6,7,7a-hexahydroindole-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester

(2S,3aS,6R,7aS)-6-hydroxy-2,3,3a,4,5,6,7,7a-octahydroindole-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester

1-benzyl 2-methyl (2S,3aS,6S,7aS)-6-hydroxyoctahydro-1H-indole-1,2-dicarboxylate