Racemic-(1R,5S,5'S)-3-(tert-butoxycarbonyl)-4'h-3-azaspiro[bicyclo[3.3.1]nonane-9,5'-isoxazole]-3'-carboxylic acid 5g

Racemic-(1R,5S,5'S)-3-(tert-butoxycarbonyl)-4'h-3-azaspiro[bicyclo[3.3.1]nonane-9,5'-isoxazole]-3'-carboxylic acid 5g