Hydrazine hydrate (1:1) → n-{1-[3-(1-Naphthyl)-5-oxo-4,5-dihydro-1,2,4-triazin-6-yl]propyl}acetamide

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Reaction Steps

1.0 g (4.84 mmol, 1 equiv.) 1-Naphthalenecarboximidamide hydrochloride are suspended in 2 ml of DMSO and 0.29 g (5.81 mmol, 1.2 equiv.) hydrazine hydrate are added. After stirring at room temperature for 16 hours, 1.45 g (7.3 mmol, 1.5 equiv.) of the compound of Example 2A, dissolved in 10 ml of ethanol, are added. The reaction mixture is stirred at reflux for 1 hour and then at 60° C. (bath temperature) for 4 hours and then at room temperature over night. The mixture is evaporated to dryness in vacuo and the product is purified by flash chromatography.

Provenance & Evidence