HCID 178474238, 화합물 → HCID 178507147, 화합물

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Compound 3-(4-acetamidophenyl)-4-aminofuro[2,3-d]pyrimidine 8 (242 mg) was dissolved in 2 M potassium hydroxide in the mixture of EtOH (16 mL) and water (4 mL). The mixture was heated (60° C.) for 24 h then concentrated in vacuo. Residual oil was triturated with cold water (6 mL) to give precipitation, which was filtrated, washed with water, and dried under the reduced pressure. The compound 9 (118 mg) as pale orange colored was obtained. MS(ES) m/e 227M+H].

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