1 ZB6 (2r,6r)-6-methyl-1-(3-sulfanylpropanoyl)piperidine-2-carboxylic acid 1.000 2 EER (2r)-1-[(2s)-2-methyl-3-sulfanyl-propanoyl]piperidine-2-carboxylic acid 0.875 3 EEO (2r)-1-[(2s)-2-methyl-3-sulfanyl-propanoyl]azepane-2-carboxylic acid 0.722 4 MCO 1-(3-mercapto-2-methyl-propionyl)-pyrrolidine-2-carboxylic acid 0.706 5 X8Z L-captopril 0.706 6 EEX (1r)-2-[(2s)-2-methyl-3-sulfanyl-propanoyl]-3,4-dihydro-1h-isoquinoline-1-carboxylic acid 0.700 7 EKX (1s)-2-[(2s)-2-methyl-3-sulfanyl-propanoyl]-3,4-dihydro-1h-isoquinoline-1-carboxylic acid 0.700