Adding a certain compound to certain chemical reactions, such as: 117719-17-2, name is 5-Bromo-3-morpholinopyrazin-2-amine, belongs to Pyrazines compound, 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 117719-17-2, name: 5-Bromo-3-morpholinopyrazin-2-amine
Three batches of 5-bromo-3-morpholin-4-yl-pyrazin-2-ylamine (I-02, 2 g, 7.7 mmol), ethyl-3-bromo-4-oxo-piperidine-1-carboxylate (2.4 g, 10 mmol) and small amount of DME (~ 0.3 mL) were heated in parallel at 120 C for 4 h, until the reactants were consumed as determined by LCMS analysis. The three reaction mixtures were mixed and diluted with DCM (100 mL), washed with saturated aqueous solution of NaHC03 (2 x 200 mL) and brine (250 mL), dried over Na2S04 and concentrated in vacuo rendering a dark residue. The black residue was purified in two portions by Biotage flash column chromatography (cartridge 40M) eluting with a solvent system of EtOAc/cyclohexane (30%-75% of EtOAc), yielding the required intermediate I-03 (2 g, 21%) as cream solid
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Reference:
Patent; CENTRO NACIONAL DE INVESTIGACIONES ONC&Oacgr;LOGICAS (CNIO); PASTOR FERNANDEZ, Joaquin; MARTINEZ GONZALEZ, Sonia; ALVAREZ ESCOBAR, Rosa Maria; RODRIGUEZ ARISTEGUI, Sonsoles; GONZALES CANTALAPIEDRA, Esther; HERNANDEZ HIGUERAS, Ana Isabel; VARELA BUSTO, Carmen; WO2011/36461; (2011); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem