4-(3-Chloro 4-fluoro-phenylamino)-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one → 4-(3-Chloro-4-fluoro-phenylamino)-5-[3-methyl-4-(4-methyl-piperazine-1-carbonyl)-1H-pyrrol-2-ylmethylene]-5,7-dihydro-pyrrolo[2,3-D]pyrimidin-6-one

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A mixture of 4-(3-chloro-4-fluoro-phenylamino)-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one (70 mg, 0.25 mmol), 3-methyl-4-(4-methyl-piperazine-1-carbonyl)-1H-pyrrole-2-carbaldehyde (70.7 mg, 0.3 mmol) and piperidine (3 drops) in ethanol (2 mL) was stirred at room temperature for 4 days. The precipitate was collected by vacuum filtration, washed with ethanol to give 63 mg (51%) of the title compound as a yellow solid. 1H NMR (360 MHz, DMSO-d6) δ 13.29 (br s, 1H, NH), 11.73 (br s, 1H, NH), 9.16 (br s, 1H), 8.31 (s, 1H), 7.72 (dd, J=2.7 & 6.5 Hz, 1H), 7.46 (d, J=2.7 Hz, 1H), 7.43 (m, 1H), 7.40 (s, 1H), 7.34 (t, J=9.05 Hz, 1H), 3.49 (m, 4H, 2×CH2), 2.29 (m, 4H, 2×CH2), 2.19 (s, 3H, CH3), 2.18 (s, 3H, CH3). MS 496 [M++1].

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