Water → N-[6-(6-Fluoro-1H-indol-4-yl)-1H-indazol-4-yl]-1-(1-methylethyl)-1H-pyrazole-5-carboxamide

Participants

Reaction Conditions

Reaction Steps

A microwave vial was charged with Solvias catalyst (8 mg), tripotassium phosphate (90 mg) and 4-bromo-6-fluoro-1H-indole (available from Sinova, 33 mg). 1-(1-Methylethyl)-N-[2-(tetrahydro-2H-pyran-2-yl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-2H-indazol-4-yl]-1H-pyrazole-5-carboxamide (70 mg) in 1,4-dioxane (0.5 ml) was added followed by water (0.1 ml). The mixture was heated under microwave irradiation at 120° C. for 10 min. The mixture was passed through a silica cartridge which had been preconditioned with methanol, washed through with methanol, then dried under a stream of nitrogen. The residue was subjected to a DCM/water wash and then dried under a stream of nitrogen. The residue was dissolved in DMSO:methanol (1 ml, 1:1, v/v) and purified by MDAP (method A). Appropriate fractions were evaporated under a stream of nitrogen. The residues were dissolved in a minimum amount of methanol, a few drops of 2M HCl (aq) were added and the reactions were left to stand briefly at room temperature. The reactions were combined then passed through an aminopropyl cartridge preconditioned with methanol and dried. Purification was carried out using the following system:

Provenance & Evidence