英文别名2-Methyl-2-propanyl (1R,3S,4S)-3-(6-bromo-1H-benzimidazol-2-yl)-2-azabicyclo[2.2.1]heptane-2-carboxylate; (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)-3-(6-bromo-1h-benzimidazol-2-yl)-2-azabicyclo(2.2.1)heptane-2-carboxylic acid 1,1-dimethylethyl ester; Ledipasvir Intermediates 
