39021-62-0, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 39021-62-0 as follows.
A mixture of (E)-4-(benzylideneamino) isobenzofuran-1(3H)-one (474 mg, 2 mmol) and 1-methyl-1H-imidazole-5-carbaldehyde (220 mg, 2 mmol) in ethyl propionate (20 mL) was cooled to 0 C. Then a solution of sodium ethoxide in ethanol [sodium (184 mg, 8 mmol) in ethanol (10 mL)] was added dropwise. After the addition, the mixture was stirred at room temperature for 3 hr. The mixture was quenched with water (10 mL) and solvent was removed in vacuum. The residue was dissolved in water, and then extracted with ethyl acetate (100 mL¡Á4). The combined organic layers were washed with brine, dried over anhydrous sodium sulfate, and concentrated to give crude product. The crude product was purified by chromatography (silica gel, petroleum ether/ethyl acetate=5:1 to 3:7) to give ethyl 3-(1-methyl-1H-imidazol-5-yl)-4-oxo-2-phenyl-1,2,3,4-tetrahydroquinoline-5-carboxylate (170 mg, yield 23%). LC-MS (ESI) m/z: 376 (M+1)+
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 39021-62-0, and friends who are interested can also refer to it.
Reference:
Patent; LEAD THERAPEUTICS, INC.; US2010/35883; (2010); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem