反应详情

In analogous manner to general procedure B, 4-bromo-N-(cyclopropylmethyl)-2-(trifluoromethyl)benzenesulfonamide (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. 4-(5-cyano-1-methyl-1H-pyrrol-2-yl)-N-(cyclopropylmethyl)-2-(trifluoromethyl)-benzenesulfonamide (106 mg, 53%) was provided after purification. MS (ESI) m/z 383. HPLC purity 100.0% at 210-370 nm, 10.8 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.

1. customdried flask under nitrogen
2. additiondry THF (1.4 mL) was added