Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 746455Generated: October 27, 2026

1H-Indazol-5-amine → (6-Bromo-imidazo[1,2-a]pyrazin-8-yl)-(1H-indazol-5-yl)-amine

https://huagongshe.com/reaction/746455

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-Indazol-5-amineHCID 88012—
Reactant6,8-Dibromoimidazo[1,2-a]pyrazineHCID 15025843—
SolventAcetonitrileHCID 6342—
Product(6-Bromo-imidazo[1,2-a]pyrazin-8-yl)-(1H-indazol-5-yl)-amineHCID 57447601—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 1.00 equivalent (eq.) of 6,8-dibromo-imidazo[1,2-a]pyrazine and 1.00 eq. of 1H-Indazol-5-ylamine are dissolved in acetonitrile and placed into a sealed tube and heated at 100° C. for 24 hours. The mixture is cooled to room temperature (RT) and partitioned between ethyl acetate (EtOAc) and saturated (sat.) NaHCO3. The aqueous phase is extracted with EtOAc and combined extracts are dried over Na2SO4. The solvent is removed under reduced pressure and the resulting residue is purified by flash chromatography (EtOAc) to yield (4).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07393848B2
Source datasetuspto-grants-2008_07
ORD IDord-b8c68c8344cf46af845a476308a42b3a
Source noteuspto-grants-2008_07