Ammonium Chloride → HCID 24993828, compound

Participants

Reaction Steps

Ethyl 1-methyl-8-(2-trifluoromethoxy-4-bromophenylamino]-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylate (330 mg, 0.64 mmol) was suspended in 10 mL of tetrahydrofuran. Ammonium chloride (106 mg 2.0 mmol) and LiN(TMS)2 1 N in THF (4.0 mL, 4.0 mmol) were added. The mixture was stirred at room temperature for 0.5 h. The solvent was then evaporated to dryness, the residue suspended in water and filtered to afford 288 mg (93% yield) of the title compound.

Provenance & Evidence