Hydrochloric Acid → 4-(3-Aminophenoxy)-N-(4-(4-methylpiperazin-1-yl)phenyl)thieno[3,2-d]pyrimidin-2-amine

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反応手順

Iron (27.1 mmol) and 12 N HCl aqueous solution (2.17 mmol) were diluted with 50% ethanol aqueous solution (30 mL), followed by stirring at 100° C. for 10 min. The compound (5.42 mmol) obtained in Step 4 was dissolved in 50% ethanol aqueous solution (30 mL) and then added to the reaction flask in which iron was activated, followed by stirring at 100° C. for 1 hour. After the reaction was complete, the reaction mixture was filtered with celite to remove iron, and the filtrate was distilled under a reduced pressure. The residue was distilled with dichloromethane and washed with sat. NaHCO3 aqueous solution. The organic layer was dried with anhydrous sodium sulfate and then filtered and distilled under a reduced pressure. The residue was separated by column chromatography (dichloromethane:methanol=10:1 (volume ratio)) to obtain the title compound (yield: 67.8%).

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