Ethanol → 7-(3-methyl-4-propoxyphenyl)-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxamide

Participants

Reaction Steps

In toluene (23 ml), ethanol (2.3 ml) and water (2.3 ml) were suspended 3-methyl-4-propoxyphenyl borate (219 mg), 7-bromo-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxamide (450 mg) and potassium carbonate (312 mg), and the suspension was stirred under argon atmosphere for 30 minutes. To the mixture was added tetrakistriphenylphosphinepalladium (70 mg), and the mixture was stirred, under argon atmosphere, at 100° C. for 8 hours and cooled. To the mixture was added water, and the mixture was extracted with ethyl acetate (twice). The organic layer was washed with saturated brine and dried with magnesium sulfate. Under reduced pressure, the solvent was evaporated, and the residue was purified with silica gel column chromatography and recrystallized from ethanol (125 ml) to give colorless crystals of 7-(3-methyl-4-propoxyphenyl)-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxamide (Compound 137) (242 mg).

Provenance & Evidence