Ethyl 2-formylpyridine-4-carboxylate → HCID 90375268, compound

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By General Procedure A from ethyl 2-formylpyridine-4-carboxylate, (Z)—N1,N1-dimethylbut-2-ene-1,4-diamine. Purification by column chromatography (DCM/MeOH/NH4OH, 90:10:1) gave the title compound as yellow viscous oil. 1H NMR (300 MHz, CDCl3): δ 8.8 (d, 1H), 7.8 (s, 1H), 7.7 (d, 1H), 5.7 (m, 2H), 4.34 (q, 2H), 4.0 (s, 2H), 3.4 (d, 2H), 2.9 (d, 2H), 2.2 (s, 6H), 1.32 (t, 3H).

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