- 9-Oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylic acid,1,1-dimethylethyl ester, hydrochloride (1:1)OTHER CA INDEX NAMES:9-Oxa-3,7-diazabicyclo[3.3.1]nonane-3-carboxylic acid,1,1-dimethylethyl ester, monohydrochloride,97%, 100mg