Electric Literature of 1173081-96-3, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.1173081-96-3, name is 3-(Aminomethyl)-4,6-dimethylpyridin-2(1H)-one hydrochloride, molecular formula is C8H13ClN2O, molecular weight is 188.6546, as common compound, the synthetic route is as follows.
Ozone was bubbled through a cooled (-78 C.) solution of methyl 3-(propan-2-yloxy)-2-(prop-2-en-1-yloxy)benzoate (123d, 438.1 mg, 1.75 mmol) in dichloromethane (17.5 mL) until a persistent violet-blue color was obtained (about 5 minutes). Nitrogen was bubbled into the solution for 3 minutes, causing the color to fade, then dimethyl sulfide (1.0 mL, 13.5 mmol) was added and the mixture allowed to warm to room temperature for one hour. The solvents were evaporated and the residue partitioned between sodium carbonate solution (sat., aq., 10 mL) and ethyl acetate (2*20 mL). The combined organic extracts were dried over magnesium sulfate, filtered, and concentrated under vacuum to give the crude residue. This crude aldehyde was dissolved in methanol (10.0 mL) and treated with 3-(aminomethyl)-4,6-dimethylpyridin-2(1H)-one hydrochloride (Cpd V, 334 mg, 1.87 mmol) at room temperature for five minutes, then sodium cyanoborohydride (332 mg, 4.50 mmol) was added and the mixture stirred at room temperature for 14.5 hours. The solvents were evaporated under vacuum and the residue partitioned between deionized water (10 mL) and ethyl acetate (2*20 mL). The combined organic extracts were dried over magnesium sulfate, filtered, concentrated under vacuum, and purified by column chromatography (EtOH+5% NH4OH in ethyl acetate) to give methyl 2-(2-{[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]amino}ethoxy)-3-(propan-2-yloxy)benzoate (123e, 76 mg, 11% yield) as a colorless glass.
Statistics shows that 1173081-96-3 is playing an increasingly important role. we look forward to future research findings about 3-(Aminomethyl)-4,6-dimethylpyridin-2(1H)-one hydrochloride.
Reference:
Patent; PFIZER INC.; EDWARDS, Martin Paul; KUMPF, Robert Arnold; KUNG, Pei-Pei; MCAPLINE, Indrawan James; NINKOVIC, Sacha; RUI, Eugene Yuanjin; SUTTON, Scott Channing; TATLOCK, John Howard; WYTHES, Martin James; Zehnder, Luke Raymond; US2014/179667; (2014); A1;,
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