Hydrochloric Acid → HCID 53912738, compound

Participants

Reaction Steps

To a solution of (R)-(-)-1-acetyl-5-[2-[2-[2-(2,2,2-trifluoroethoxy)phenoxy]ethylamino]propyl]indoline-7-carbonitrile (2.00 g) in isopropanol (4.2 ml) was added concentrated hydrochloric acid (4.2 ml) slowly with stirring under ice cooling, and the mixture was stirred for 40 minutes. The reaction mixture was neutralized by a saturated aqueous sodium bicarbonate solution, and extracted with methylene chloride. The extract was washed with water, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure to give 1.70 g of (R)-(-)-1-acetyl-5-[2-[2-[2-(2,2,2-trifluoroethoxy)phenoxy]ethylamino]propyl]indoline-7-carboxamide melting at 144°-146° C.

Provenance & Evidence