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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1725525Generated: November 1, 2026

4-Aminoindole → HCID 68483297, compound

https://huagongshe.com/reaction/1725525

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminoindoleHCID 583431—
Reactant5-acetyl-2-ethylnitro6-phenylpyridazin-3(2H)-oneHCID 10732015—
SolventEthanolHCID 702—
ProductHCID 68483297HCID 6848329780.2%

Reaction Steps

To a stirred solution of 80 mg (0.278 mmol) of 5-acetyl-2-ethyl-4-nitro-6-phenylpyridazin-3(2H)-one (Dal Piaz, V et al, J. Med. Chem. 1997, 40, 1417) in 4 ml of ethanol, 55 mg (0.417 mmol) of 4-aminoindole was added. The resulting mixture was stirred at room temperature for one hour and the final product was collected by filtration and washed with diethylether to yield the title compound (83 mg, 79.8% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07491722B2
Source datasetuspto-grants-2009_02
ORD IDord-8ed0d330e4de4d489a83f0c5414342a1
Source noteuspto-grants-2009_02