Methane → Rilpivirine hydrochloride

Participants

Reaction Conditions

Reaction Steps

Rilpivirine (20 gm; Chromatographic purity: 96.5%) was suspended in a mixture of methanol and methyl ethyl ketone (1:1, 2000 ml) and then heated to reflux for 1 hour to provide a clear solution. The solution was treated with charcoal and filtered through celite bed. The solvent was distilled off under reduced pressure to obtain a residual solid. To the residual solid was added methanol (200 ml) and then heated to 60 to 65° C. To the solution was added a solution of hydrochloric acid in isopropanol (200 ml) at 60 to 65° C. and stirred for 1 hour 30 minutes. The contents were cooled to room temperature and stirred for 30 minutes. The separated solid was filtered and then dried to provide 14 gm of rilpivirine hydrochloride.

Provenance & Evidence