Hydrochloric Acid → 1',2',3',4',5',6'-Hexahydro-[2,4']bipyridinyl-6-carboxylic acid methyl-(1,2,3,4-tetrahydro-naphthalen-1-yl)-amide hydrochloride salt

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Reaction Steps

To a solution of 6-[methyl-(1,2,3,4-tetrahydro-naphthalen-1-yl)-carbamoyl]-3′,4′,5′,6′-tetrahydro-2′H-[2,4′]bipyridinyl-1′-carboxylic acid tert-butyl ester (202 mg, 0.45 mmol) was added a solution of 4M HCl in dioxane (1.13 mL, 4.5 mmol)) at RT. After stirring overnight at RT, the solvent was evaporated under reduce pressure to give 1′,2′,3′,4′,5′,6′-hexahydro-[2,4′]bipyridinyl-6-carboxylic acid methyl-(1,2,3,4-tetrahydro-naphthalen-1-yl)-amide hydrochloride salt (162 mg, 93%). 1H-NMR (400 MHz, d6-DMSO): δ=1.83-2.02 (m, 6H), 2.51 (s, 3H), 2.52-2.59 (m, 2H), 2.71-3.03 (m, 2H), 3.29-3.38 (m, 2H), 3.97-4.05 (m, 2H), 4.78-4.83 (m, 1H), 7.08-7.23 (m, 4H), 7.36-7.41 (m, 1H), 7.52-7.55 (m, 1H), 7.90-7.95 (m, 1H), 8.81 (br, 1H), 9.04 (br, 1H).

Provenance & Evidence