4-Benzoylpiperidine hydrochloride → 5-[5-(4-Benzoylpiperidine-1-sulfonyl)thiophen-2-yl]-3-ethyl-6-methyl-1H-pyridin-2-one

Participants

Reaction Steps

5-(5-Ethyl-2-methyl-6-oxo-1,6-dihydropyridin-3-yl)thiophene-2-sulfonyl chloride is reacted with phenyl-piperidin-4-yl-methanone hydrochloride as described in Step 5, Example 24 to give the title compound as a yellow solid (85% yield). LC/MS: RT 3.27 min, m/e 471 (M+H); 1H NMR (CDCl3, δ, ppm): 11.95 (1H, s), 7.89 (2H, dd), 7.55-7.60 (1H, m), 7.44-7.52 (3H, m), 7.33 (1H, s), 7.01 (1H, d), 3.79-3.84 (2H, m), 3.27-3.36 (1H, m), 2.73-2.82 (2H, m), 2.60 (2H, q), 2.48 (3H, s), 1.89-2.05 (4H, m), 1.24 (3H, t).

Provenance & Evidence