5-(4-Aminophenyl)-6-ethylthieno[2,3-d]pyrimidin-4-amine → HCID 69057144, compound

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Reaction Steps

A mixture of Example 78A (0.27 g, 1 mmol) and NaOCN (0.13 g, 2 mmol) in water (1.5 mL) and acetic acid (1.5 mL) was stirred overnight at room temperature and partitioned between water and ethyl acetate. The organic extract was washed with saturated aqueous NaHCO3 and brine, dried (MgSO4), filtered, and concentrated to provide 0.3 g of the desired product. MS (ESI(+)) m/e 314 (M+H)+; 1H NMR (300 MHz, DMSO-d6) δ 1.15 (t, J=7.46 Hz, 3H); 2.63 (q, J=7.57 Hz, 2H); 5.94 (m, 2H); 7.24 (d, J=8.48 Hz, 2H); 7.56 (d, J=8.48 Hz, 2H); 8.25 (s, 1H); 8.75 (s, 1H).

Provenance & Evidence