Water → HCID 86660858, compound

Participants

Reaction Conditions

Reaction Steps

In a 5 mL microwave vial 4-[4-bromo-2-(1-methyl-1H-pyrazol-5-yl)phenoxy]-3-cyano-N-1,3-thiazol-2-ylbenzene sulfonamide (Patent WO 2010079443, 500 mg, 0.97 mmol) was dissolved in 1,4-dioxane (3 mL) under nitrogen. (3-{[(Tert-butoxycarbonyl)amino]methyl}phenyl)boronic acid (362 mg, 1.44 mmol), bis(triphenylphosphine) palladium (II) dichloride (68 mg, 0.1 mmol), sodium carbonate (204 mg, 1.92 mmol) and water (0.5 mL) were added and the reaction vessel sealed and heated to 120° C. for 45 minutes in the microwave. The reaction mixture was partitioned between ethyl acetate (20 mL) and 0.2M aqueous HCl (20 mL). The organic layer was separated, filtered then concentrated in vacuo. The residue was purified by silica gel column chromatography (ISCO™, 12 g silica, 99:1 DCM:Acetic acid to 90:10:1 DCM:MeOH:Acetic acid gradient) to afford the title compound (380 mg, 61%) as a pale orange solid.

Provenance & Evidence