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. 37669-64-0, name is 5-Bromo-3-pyridinemethanol. This compound has unique chemical properties. The synthetic route is as follows. HPLC of Formula: C6H6BrNO
To a solution of (5-bromopyridin-3-yl)methanol (3 g, 16.0 mmol) in DCM (15 mL) cooled to 0 C was added thionylchloride (7.59 g, 63.8 mmol) dropwise and the reaction mixture was stirred at room temperature over night. The mixture was poured onto ice/water (20 mL), basified with NaOH cone. (8 mL) and extracted with EtOAc (2 x 50 mL). Combined organics were dried over Na2S04, filtered and evaporated to dryness. The residue was purified by silica gel flash chromatography eluting with a 0 to 40% EtO Ac-heptane gradient to give the title compound (3.08 g, 93 %) as a white solid. MS: 206.0, 207.9 (M+H+).
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Reference:
Patent; F. HOFFMANN-LA ROCHE AG; AEBI, Johannes; AMREIN, Kurt; CHEN, Wenming; HORNSPERGER, Benoit; KUHN, Bernd; LIU, Yongfu; MAERKI, Hans P.; MAYWEG, Alexander V.; MOHR, Peter; TAN, Xuefei; WANG, Zhanguo; ZHOU, Mingwei; WO2013/79452; (2013); A1;,
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