3-(difluoromethyl)-5-fluoro-1-methyl-1H-pyrazole-4-carboxylic acid

(4-Bromo-3-(ethoxymethyl)phenyl)methanol

pharmaceutical intermediate for synthesis

Tert-butyl (1R,3S,4S)-3-(6-bromo-1H-benzimidazol-2-yl)-2-azabicyclo[2.2.1]heptane-2-carboxylate

Ledipasvir intermediate

(1R,3S,4S)-tert-butyl 3-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-2-yl)-2-azabicyclo[2.2.1]heptane-2-carboxylate

Pharmaceutical intermediate for ledipasvir

(S)-Benzyl 6-(5-(7-bromo-9,9-difluoro-9H-fluoren-2-yl)-1H-imidazol-2-yl)-5-azaspiro[2.4]heptane-5-carboxylate

Ledipasvir intermediate