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In a wide research programme towards the study of piperidin-4-ones with efficient pharmacological effect, a new series of N-acyl r-2,c-6-bis(4-methoxyphenyl)-c-3,t-3-dimethylpiperidin-4-ones 2–5 are synthesized and characterized by IR spectra, 1H, 13C, DEPT - 135 and 2D (COSY and HSQC) NMR and mass spectra. The parent compound 1 prefers to exist in a chair conformation whereas the extracted coupling...
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