These common heterocyclic compound, 54013-07-9, name is 5-Methoxypyrazin-2-amine, 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. category: Pyrazines
Example 3 Preparation of 5-(6-((5-methoxypyrazin-2-yl)carbamoyl)-2-methylbenzofuran-4-yloxy)-N,N-dimethylpyrimidine-2-carboxamide (3) The title compound (3) was prepared by a method analogous to that described in Example 1 using 5-methoxypyrazin-2-amine and ethyl 4-(2-(dimethylcarbamoyl)-pyrimidin-5-yloxy)-2-methylbenzofuran-6-carboxylate (I-2a). 1H NMR (400 MHz, CHLOROFORM-d) delta ppm 2.49 (s, 3H), 2.99 (s, 3H), 3.15, (s, 3H), 3.98 (s, 3H), 6.28 (s, 1H), 7.51 (s, 1H), 7.89 (s, 1H), 7.94 (s, 1H), 8.30 (s, 1H), 8.50 (s, 2H), 9.17 (s, 1H). m/z=449.1 (MH+)
The synthetic route of 5-Methoxypyrazin-2-amine has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Pfizer Inc; US2010/234285; (2010); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem