Methanol → HCID 52943186, compound

Participants

Reaction Steps

To a suspension of 8-(5-nitro-2-trifluoromethoxy-phenylamino)-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxamide (630 mg, 1.4 mmol) in methanol (6 mL) ammonium chloride (240 mg, 4.3 mmol) in water (25 mL) and iron (397 mg, 7.4 mmol) were added. The mixture was heated under reflux for 3 hours until HPLC revealed the disappearance of the starting material. The solvent was removed and the crude was diluted with trifluoroethanol. Iron was removed and the filtrate was concentrated to give the final compound as a light brown solid in quantitative yield.

Provenance & Evidence