117718-84-0

Hazard Information

Synthesis

63744-22-9

117718-84-0

General procedure for the synthesis of 6-bromoimidazo[1,2-A]pyrazin-8-amine from 6,8-dibromo-imidazo[1,2-A]pyrazine: The product obtained from the preparation of Example 29 (1.80 g, 6.45 mmol) was mixed with concentrated aqueous NH4OH solution (27.0 mL) in a closed pressure vessel and reacted with stirring for 24 hrs at 90 °C. Upon completion of the reaction, the solvent was removed by evaporation and the resulting residue was purified by silica gel column chromatography with EtOAc as eluent. A white solid product (1.01 g, 73% yield) was finally obtained.LCMS analysis showed that MH+ = 213.

References

[1] Journal of Medicinal Chemistry, 1992, vol. 35, # 18, p. 3353 - 3358
[2] Patent: US2004/63715, 2004, A1. Location in patent: Page/Page column 27
[3] Patent: WO2004/22562, 2004, A1. Location in patent: Page 28

Questions And Answer

• Application

  6-bromoimidazo[1,2-a]pyrazin-8-amine are a type of synthetic building block with strong pharmacological activity among nitrogen-containing heterocyclic compounds. Heterocyclic compounds are a class of small molecule compounds with strong biological activity and are widely used in fields such as biomedicine, pesticides, and optoelectronic materials. In particular, 6-haloimidazo[1,2-A]pyrazine active small molecule compounds are a research hotspot for major pharmaceutical companies.;

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