6-Amino-2-aza-spiro[3.3]heptane-2,6-dicarboxylic acid 2-tert-butyl ester; 6-amino-2-[(tert-butoxy)carbonyl]-2-azaspiro[3.3]heptane-6-carboxylic acid; 6-Amino-6-carbamoyl-2-aza-spiro[3.3]heptane-2-carboxylic acid tert-butyl ester; 6-AMino-2-Boc-2-azaspiro[3.3]heptane-6-carboxylic acid; 6-Amino-2-aza-spiro[3.3]heptane-2,6-dicarboxylic acid 2-tert-butyl ester - A7202;