2-Chloro-4-hydroxybenzaldehyde → HCID 69707946, compound

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The mixture of 4-(3-chloro-4-fluoro-phenylamino)-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one (100 mg, 0.36 mmol), 2-chloro-4-hydroxy-benzaldehyde (84.5 mg, 0.54 mmol), and piperidine (3 drops), in ethanol (3 mL) was heated at 60° C. oil bath for 4 hours, and cooled to room temperature. The product was crystallized out, filtered, washed by ethanol, and dried under high vacuum to provide pure 4-(3-chloro-4-fluoro-phenylamino)-5-[-(2-chloro-4-hydroxy-phenyl)-methylidene]-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one. 1H NMR (400 MHz, DMSO-d6) d 11.52 (br s, 1H), 10.45 (br s, 1H), 8.42 (s, 1H), 8.35 (br s, 1H), 7.65 (s, 1H), 7.11 (t, 1H), 6.96 (m, 1H), 6.79 (m, 1H), 6.72 (d, 1H), 6.66 (m, 1H), 6.56 (dd, 1H). MS 418 [M++1].

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