Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 77837-08-2, name is 6-Oxo-1-phenyl-1,6-dihydropyridine-3-carboxylic acid. A new synthetic method of this compound is introduced below., Recommanded Product: 77837-08-2
General procedure: Method 3: [0050] After 300 mg (1.39 mmol) of 6-oxo-1-phenyl-1,6-dihydro-3-pyridinecarboxylic acid was dissolved in 10 mL of acetonitrile, 415 mg (2.08 mmol) of 3-aminoquinuclidine dihydrochloride and 718 mg (5.56 mmol) of diethylisopropylamide were added to the solution. Afterward, 207 mg (1.53 mmol) of 1-hydroxylbenzotriazole (HOBt) and 266 mg (1.39 mmol) of N-(3-dimethylaminopropyl)-N?-ethylcarbodiimide hydrochloride (EDC) were added to the reaction solution. This reaction solution was stirred at room temperature for about 24 hours. After termination of the reaction was determined by liquid chromatography, the solvent was removed in vacuo and then extracted three times with chloroform and an aqueous NaOH solution (pH=12), followed by purification using liquid chromatography (chloroform:methanol: ammonia water=10:1:0.1) to obtain a target compound (Actual yield: 317 mg, Percent yield: 70percent). [0051] 1H-NMR (CDCl3,200 MHz) delta8.11 (s, 1H), 7.75 (d, 1H), 7.40 (m, 4H), 6.65 (d, 1H), 6.26 (br, 1H), 4.15 (m, 1H), 3.39 (m, 1H), 2.89 (m, 4H), 2.53 (m, 1H), 2.06 (m, 1H), 1.53 (m, 4H)
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Reference:
Patent; SK BIOPHARMACEUTICALS CO., LTD.; Maeng, Cheol Young; Jang, Young Koo; Cha, Su Bong; Shin, Hye Won; Joung, Chan Mi; Cha, Hwa Ryun; Yi, Eun Jung; US2013/317059; (2013); A1;,
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