Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 878197-68-3, name is 5-Bromoimidazo[1,2-a]pyridine-2-carbaldehyde. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 878197-68-3
To a solution of Lambda/-methyl-5,6,7,8-tetrahydro-8-quinolinamine (500 mg, 3.1 mmol) and 5-bromoimidazo[1 ,2-a]pyridine-2-carbaldehyde (770 mg, 3.4 mmol) in dichloroethane (17 ml_) was added acetic acid (180 mul_, 3.1 mmol) and sodium triacetoxyborohydride (2.0 g, 9.3 mmol). The mixture was stirred at room temperature for 15 hours and then filtered through a silica plug and rinsed with 10% ammonium hydroxide- acetonitrile. The solvent was removed and the residue diluted with dichloromethane, washed with saturated aqueous sodium bicarbonate, and dried with magnesium sulfate to give 1.1 g (99% yield) of Lambda/-[(5-bromoimidazo[1 ,2-a]pyridin-2-yl)methyl]-Lambda/- methyl-5,6,7,8-tetrahydro-8-quinolinamine as an orange oil. 1H-NMR (CDCI3): delta 8.50 (d, 1H), 7.92 (s, 1 H), 7.49 (d, 1 H), 7.32 (d, 1 H), 7.03 (m, 2H), 6.96 (m, 1H), 4.09 (m, 1 H), 3.94 (s, 2H), 2.72 (m, 2H), 2.40 (s, 3H), 2.12 (m, 1H), 1.99 (m, 2H), 1.68 (m, 1H); MS m/z 372 (M+1).
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Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2006/26703; (2006); A2;,
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