New downstream synthetic route of Synthetic Route of 80866-82-6

Synthetic Route of 80866-82-6 ,Some common heterocyclic compound, 80866-82-6, molecular formula is C8H9BrO2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

3-(2-Oxo-2,3-dihydro-benzoimidazol-l-yl)-hexanoic acid ethyl ester (96.7 mg, 0.35 mmol), prepared as described above, (5-bromo-2-methoxy-phenyl)-methanol (152 mg, 0.7 mmol) and trrphenylphosphene (183.6, 0.7 mmol) were combined m a reaction vial and THF (1 iriL) was added. The mixture was stirred until complete solution was attained, then cooled to O0C, and diisopropylazodicarboxylate (0.136 mL, 0.7 mmol) was added dropwise. The reaction mixture was agitated at room temperature overnight, diluted with THF (2 mL) then treated directly with the Amberlyst resin (3 g, 4 mmol). This reaction mixture was agitated overnight and the resin was then filtered and washed with DMF (2 x 3 mL) and several portions of methanol. The product was eluted by treating the resin with a 20% solution of formic acid in methanol (5 mL) and washing with methanol (3 mL). The combined eluant and final wash was evaporated to provide the title compound (154 mg, 99%). LCMS (ESMS): m/z 447/9 (M+H+).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 80866-82-6, 5-Bromo-2-methoxybenzyl alcohol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG; WO2008/147697; (2008); A1;,
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