Benzoate → HCID 178437863, compound

Participants

Reaction Steps

A mixture of 4-morpholinylethyl 3,5-di-[2-(4-morpholinyl)ethoxy]benzoate (2.0 g, 4 mmol), 1-cyclopentyl-3-ethyl-5-amino-1H-pyrazole-4-carboxamide (0.45 g, 2 mmol), NaOCH3 (0.23 g, 4 mmol) and ethanol (50 ml) was refluxed for 96 hours. The reaction was incomplete so an additional equivalent of the benzoate and NaOCH3 were added and the mixture was refluxed for 48 hours. The reaction mixture was stripped to dryness, and the residue was treated with water and acidified with acetic acid. The mixture was cooled and the product was isolated by filtration and dried at 90° C. to afford 0.61 g (54%) of 1-cyclopentyl-3-ethyl-6-[3,5-di[2-(4-morpholinyl)ethoxy]phenyl]pyrazolo[3,4-d]pyrimidin-4-one, m.p. 182°-183° C.

Provenance & Evidence