for the following products
(1S,3S,5S)-3-(aminocarbonyl)-2-azabicyclo[3.1.0]hexane-2-carboxylic acid tert-butyl ester | (1S,3S,5S)-tert-Butyl 3-carbamoyl-2-aza-bicyclo[3.1.0]hexane-2-carboxylate | Saxagliptin intermediate 3 and (1S,3S,5S)-3-aminocarbonyl-2-azabicyclo[3.1.0]hexane-2-carboxylicacid,1,1-dimethylethyl ester
