(3r,6s)-5-[(tert-butoxy)carbonyl]-1,1-difluoro-5-azaspiro[2.4]heptane-6-carboxylic acid

(3r,6s)-5-[(tert-butoxy)carbonyl]-1,1-difluoro-5-azaspiro[2.4]heptane-6-carboxylic acid · CAS 1430105-52-4