Ethyl 2-(3-formylphenoxy)acetate → HCID 178472964, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-cyclopentyl-3-ethyl-5-amino-1H-pyrazole-4-carboxamide (3.54 g, 15.95 mmol), 3-(ethoxycarbonylmethoxy)benzaldehyde (4.3 g) and xylenes (20 ml) was heated at 160° C. overnight. The reaction mixture was cooled to room temperature, a solid formed which was collected by filtration and washed with methanol and then ether. The product was recrystallized from acetonitrile to afford 2.48 g of 1-cyclopentyl-3-ethyl-6-[3-(ethoxycarbonylmethoxy)phenyl]pyrazolo[3 4-d]pyrimidin-4-one. An additional 0.3 g of product was also obtained from the recrystallization of the filtrate for a total of 2.78 g.

Provenance & Evidence