N-tert-butyloxycarbonyl-L-tert-leucine
3-(3,4-difluoro-phenoxymethyl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carboxylic acid benzyl ester
(2S,3S)-N-tert-butyloxycarbonyl-3-(tert-butyldimethylsilyloxy)-2-pyrrolidinecarboxylic acid methyl ester
tert-butyl (2S,3S)-3-{[tert-butyl(dimethyl)silyl]oxy}-2-formylpyrrolidine-1-carboxylate
(3aR,6aR)-6S-(6-fluoro-1H-indol-3-yl)-octahydro-pyrrolo[3,2-b]pyrrole-1,3,4-tricarboxylic acid 1-benzyl ester 4-tert-butyl ester
4-(2-amino-3,3-dimethyl-butyryl)-3-(3,4-difluoro-phenoxymethyl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carboxylic acid benzyl ester
3-(3,4-difluoro-phenoxymethyl)-4-[3,3-dimethyl-2-(2-methylaminopropionylamino)-butyryl]-hexahydro-pyrrolo[3,2-b]pyrrole-1-carboxylic acid methylamide
(1-{1-[6-(3,4-difluoro-phenoxymethyl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethyl-propylcarbamoyl}-ethyl)-methyl-carbamic acid tert-butyl ester
(1-{1-[4-acetyl-6-(3,4-difluoro-phenoxymethyl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethylpropylcarbamoyl}-ethyl)-methyl-carbamic acid tert-butyl ester
(1-{1-[6-(3,4-difluoro-phenoxymethyl)-4-methanesulfonyl-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethylpropylcarbamoyl}-ethyl)-methyl-carbamic acid tert-butyl ester