Potassium Carbonate → 1-(4-chloro-2-methoxyphenyl)-N-(4-methoxybenzyl)-N-(pyrimidin-4-yl)isoquinoline-6-sulfonamide

Participants

Reaction Conditions

Reaction Steps

A vial was charged with 1-chloro-N-(4-methoxybenzyl)-N-(pyrimidin-4-yl)isoquinoline-6-sulfonamide (INTERMEDIATE ZZZZ, 310.8 mg, 0.705 mmol), (4-chloro-2-methoxyphenyl)boronic acid (197 mg, 1.057 mmol), potassium carbonate (292 mg, 2.115 mmol), and Pd(PPh3)4 (81 mg, 0.070 mmol). The vial was flushed with Ar (g), then 1,4-dioxane (2643 μl) and water (881 μl) were added. The vial was sealed and heated to 100° C. for 30 min in a Biotage Initiator microwave reactor. The mixture was extracted with EtOAc (3×), and the combined organic extracts were concentrated. The residue was purified by chromatography on silica gel (40-g Redi-Sep Gold column, 0-40% EtOAc/Heptane) to give 1-(4-chloro-2-methoxyphenyl)-N-(4-methoxybenzyl)-N-(pyrimidin-4-yl)isoquinoline-6-sulfonamide (352 mg, 0.643 mmol, 91% yield) as a cream-colored foam. m/z (ESI) 547.2 (M+H)+.

Provenance & Evidence