Acetic Acid → HCID 18442427, compound

Participants

Reaction Steps

1,1-Dioxo-3,3-dibutyl-5-(4-aminophenyl)-8-methoxy-2,3,4,5-tetrahydro-1,5-benzothiazepine (Method 105; 918 mg, 2.13 mmol) was dissolved in DMF (dry, 20 ml). Sodium thiomethoxide (810 mg, 11.6 mmol) was added. The reaction mixture was treated at 100–120° C. for four hours then room temperature overnight. Acetic acid (3 ml) was added and the mixture was flushed with nitrogen (g) and the gas was lead through a flask containing sodium hypochlorite in order to destroy the methyl mercaptan formed. Water was added and the water layer was extracted two times with EtOAc. The combined organic layer was washed with brine, dried, filtered and evaporated under reduced pressure. The mixture contained DMF so toluene and brine was added (everything didn't dissolved). The water layer was extracted two times with toluene. The combined organic layers were washed once with brine. The separation funnel was washed with EtOAc in order to dissolve everything. The toluene and EtOAc solutions were combined, dried, filtered and evaporated under reduced pressure. The residue was purified by flash chromatography using DCM:EtOAc, 7:3 as eluent to give the title compound 0.6 g (27%). M/z 417.4.

Provenance & Evidence