Extracurricular laboratory: Synthetic route of 167837-43-6

At the same time, in my other blogs, there are other synthetic methods of this type of compound,167837-43-6, (E)-3-(6-Aminopyridin-3-yl)acrylic acid, and friends who are interested can also refer to it.

Adding a certain compound to certain chemical reactions, such as: 167837-43-6, (E)-3-(6-Aminopyridin-3-yl)acrylic acid, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Recommanded Product: 167837-43-6, blongs to pyridine-derivatives compound. Recommanded Product: 167837-43-6

To a solution OF METHYL- (2-METHYLBENZOFURAN-3-YLMETHYL)-AMINE (176 mg, 1.0 mmol), 3- (6-AMINO-PYRIDIN-3-YL)-ACRYLIC acid (150 mg, 0.91 mmol), HOBt (135 mg, 1.0 mmol) and diisopropylethylamine (0.46 mL, 2.7 mmol) in DMF (10 mL) was added EDC (209 mg, 1. 1 mmol). The yellow solution was stirred overnight at room temperature. The reaction mixture was cooled to 0 C then treated with H20 (40 mL) to form a precipitate. The precipitate was filtered, washed with H20 (20 mL) then with a 10% EtOAc: hexanes solution (10 mL). The solid was dissolved in a 10% MeOH: CH2Cl2 solution (20 mL), cooled to 0 C then treated with 2 mL of a 1.0 M HCl in ET20. After stirring for 10 minutes, the yellow solution was concentrated to dryness then triturated with Et2O (20 mL). The title compound was collected and dried under vacuo to yield the title compound (76.9%) as a mixture of amide rotamers. 1H NMR (300 MHz, DMSO-D6) 8 8. 41-8. 33 (m, 3H), 7.58- 7.02 (m, 6H), 4.93 and 4.74 (2 x s, 2H), 3.05 and 2.82 (2 x s, 3H), 2.53 and 2.48 (2 x s, 3H); MS (ESI) NALE 322 (M+ H) +.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,167837-43-6, (E)-3-(6-Aminopyridin-3-yl)acrylic acid, and friends who are interested can also refer to it.

Reference:
Patent; AFFINIUM PHARMACEUTICALS, INC.; WO2004/52890; (2004); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem