Cyclohexylamine → [8-(cyclohexylamino)-1-methyl-1H-pyrazolo[4,3-h]quinazolin-3-yl](phenyl)methanone

Participants

Reaction Steps

83 mg (0.19 mmol) of [8-(benzylsulfonyl)-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazolin-3-yl](phenyl)methanone were dissolved in 3 mL of dimethylsulfoxide and cyclohexylamine (0.033 mL, 0.29 mmol) and the solution was heated at 100° C. under stirring for 16 hours. The solvent was then removed under reduced pressure and the crude purified by chromatography on a silica gel column (eluant dichloromethane/acetone) giving 31 mg of [8-(cyclohexylamino)-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazolin-3-yl](phenyl)methanone and 15 mg of [8-(cyclohexylamino)-1-methyl-1H-pyrazolo[4,3-h]quinazolin-3-yl](phenyl)methanone (70% yield overall).

Provenance & Evidence