Synonyms: 2-Azabicyclo[2.2.1]heptane-2-carboxylic acid, 3-(6-broMo-1H-benziMidazol-2-yl)-, 1,1-diMethylethyl ester,(1R,3S,4S)-;(1R,3S,4S)-3-(6-Bromo-1H-benzimidazol-2-yl)-2-azabicyclo[2.2.1]heptane-2-carboxylic acid 1,1-dimethylethyl ester;(1R,3S,4S)-tert-butyl 3-(6-broMo-1H-benzo[d]iMidazol-2-yl)-2-azabicyclo[2.2.1]heptane-2-carboxylate;(1R,3S,4S)-tert-butyl 3-(6-broMo-1Hbenzo[d]iMidazol-2-yl)-2-azabicyclo[2,2,1] heptanes-2-carboxylate;Ledipasvir interMediates