8-(cyclohexylamino)-1-methyl-1H-pyrazolo[4,3-h]quinazoline-3-carboxamide → Diethyl Ether

Participants

Reaction Steps

A solution of 110 mg (0.27 mmol) of ethyl 8-{[1-(tert-butoxycarbonyl)pyrrolidin-3-yl]amino}-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylate in a mixture dichoromethane-trifluoroacetic acid 9/1 was stirred at room temperature for 6 hours. The solvent was then removed in vacuo and the resulting oil taken up with dichloromethane and washed with aqueous NaHCO3. The organic layer was dried over Na2SO4 and evaporated. The residue was triturated with diethylether giving 83 mg (60% yield) of the title compound.

Provenance & Evidence