Potassium Fluoride → HCID 25004924, compound

Participants

Reaction Steps

In analogous manner to general procedure B, 1-{[4-bromo-2-(trifluoromethyl)phenyl]sulfonyl}pyrrolidine (200 mg, 0.56 mmol), 5-cyano-1-methyl-1H-pyrrol-2-ylboronic acid (100 mg, 0.67 mmol), potassium fluoride (107 mg, 1.85 mmol), and tris(dibenzylideneacetone)dipalladium(0) (14 mg, 0.01 mmol) were placed in an oven dried flask under nitrogen and dry THF (1.4 mL) was added. Tri-t-butylphosphine (83 μL, 0.02 mmol, 10 wt % in hexane) was added and the reaction was stirred for 16 hours. 1-methyl-5-[4-(pyrrolidin-1-ylsulfonyl)-3-(trifluoromethyl)phenyl]-1H-pyrrole-2-carbonitrile (117 mg, 54%) was provided after purification. HRMS: calcd for C17H16F3N3O2S+H+, 384.09881; found (ESI, [M+H]+), 384.0991, HPLC purity 100.0% at 210-370 nm, 10.9 min.; the Xterra® RP18 column, 3.5μ, 150×4.6 mm column, 1.2 mL/min., 85/15-5/95 (ammonium formate buffer pH=3.5/ACN+MeOH) for 10 min., hold 4 min.

Provenance & Evidence