1H-Pyrazol-3-amine, 5-methyl- → (2-chloro-purin-4-yl)-(5-methyl-1H-pyrazol-3-yl)-amine

참여 물질

반응 단계

To a suspension of 2,4-dichloro-purine (2.0 g, 10.6 mmol) in anhydrous ethanol (10 mL) was added 5-methyl-1H-pyrazol-3-yl amine (2.05 g, 21.2 mmol). The resulting mixture was stirred at room temperature for 48 h. The resulting precipitate was collected by filtration, washed with ethanol, and dried under vacuum to afford 1.524 g (58% yield) of (2-chloro-purin-4-yl)-(5-methyl-1H-pyrazol-3-yl)-amine which was used in the next step without further purification.

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