The present invention provides for a process for preparing 6,6-Dimethyl-3-aza-bicyclo[3.1.0]hexane-2-sulfonate, an intermediateuseful in the efficient preparation of (1R,2S,5S)-methyl 6,6-dimethyl-3-azabicyclo[3,1,0]hexane-2-carboxylic acid and esters and salts thereof, processes for preparing (1R,2S,5S)-methyl 6,6-dimethyl-3-azabicyclo[3,1,0]hexane-2-carboxylic acid and esters and salts thereof from the sulfonate intermediate and processes for preparing 6,6-Dimethyl-3-aza-bicyclo[3.1.0]hexane-2-sulfonate.
本发明提供了一种制备
6,6-二甲基-3-氮杂双环[3.1.0]己烷-2-
磺酸盐的过程,该中间体可用于高效制备(1R,2S,5S)-甲基6,6-二甲基-3-
氮杂双环[3,1,0]己烷-2-
羧酸及其酯和盐,以及从
磺酸盐中间体制备(1R,2S,5S)-甲基6,6-二甲基-3-
氮杂双环[3,1,0]己烷-2-
羧酸及其酯和盐的过程,以及制备
6,6-二甲基-3-氮杂双环[3.1.0]己烷-2-
磺酸盐的过程。