Sodium Bicarbonate → 6-(3-Chloro-4-methoxy-benzyl)-1-(3-nonyl)-3-ethyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one

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Reaction Steps

18 mg (0.065 mmol) of 5-amino-3-ethyl-1-(3-nonyl)-1H-pyrazole-4-carboxamide and 69 mg (0.323 mmol) of methyl 3-chloro-4-methoxyphenylacetate are refluxed for 6 hours in 0.5 ml of a 0.5M ethanolic sodium ethoxide solution. After dichloromethane and saturated aqueous sodium hydrogen carbonate solution have been added, the phases are separated. Purification by chromatography gives 8 mg (28%) of a solid, Rf=0.75 (dichloromethane/methanol=15:1).

Provenance & Evidence