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

(2S,3aS,7aS)-1-(tert-butoxycarbonyl)-6-(dimethylamino)octahydro-1H-indole-2-carboxylic acid

methyl (2S,3aS,7aS)-6-(dimethylamino)octahydro-1H-indole-2-carboxylate