(1R,2S,5S)-methyl 6,6-dimethyl-3-aza-bicyclo[3.1.0]hexane-2- carboxylate hydrochloride

(1R,2S,5S)-methyl 6,6-dimethyl-3-aza-bicyclo[3.1.0]hexane-2- carboxylate hydrochloride