4-(3-Chloro 4-fluoro-phenylamino)-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one → 4-(3-Chloro-4-fluoro-phenylamino)-5-[4-methyl-5-(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), 4-methyl-5-(4-methyl-piperazine-1-carbonyl)-1H-pyrrole-2-carbaldehyde (70.6 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 and dried to give 89.1 mg (72%) of the title compound. 1H NMR (360 MHz, DMSO-d6) δ 13.13 (br s, 1H, NH), 11.74 (br s, 1H, NH), 8.77 (br s, 1H, NH), 8.27 (s, 1H), 7.75 (dd, J=2.7 & 6.5 Hz, 1H), 7.71 (s, 1H), 7.52 (m, 1H), 7.38 (t, J=8.85 Hz, 1H), 6.74 (s, 1H), 3.52 (m, 4H, 2×CH2), 2.37 (m, 4H, 2×CH2), 2.21 (s, 3H, CH3), 2.14 (s, 3H, CH3). MS 496 [M++1].

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