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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944014Generated: October 29, 2026

Potassium Carbonate → HCID 66863597, compound

https://huagongshe.com/reaction/1944014

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1,2-Diaminocyclohexane, trans-HCID 43806—
Reactant5-Fluoro-1-(3-fluorobenzyl)-1H-indole-2-carboxamideHCID 66845696—
ReactantEthyl 6-bromoimidazo[1,2-b]pyridazine-2-carboxylateHCID 70701127—
CatalystCopper iodideHCID 83717—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66863597HCID 668635975.5%
ProductEthyl 6-bromoimidazo[1,2-b]pyridazine-2-carboxylateHCID 70701127—

Reaction Steps

Compound 21 was prepared according to a process similar to that described in Example 20, by reacting 0.4 g (1.40 mmol) of 5-fluoro-1-[(3-fluorophenyl)methyl]-1H-indole-2-carboxamide, prepared according to the protocol described in step 1.2, with 0.41 g (1.54 mmol) of ethyl 6-bromoimidazo[1,2-b]pyridazine-2-carboxylate, prepared according to the protocol described in step 21.1, in the presence of 80 mg (0.42 mmol) of copper iodide, 0.38 g (2.79 mmol) of potassium carbonate and 53 mg (0.46 mmol) of trans-1,2-cyclohexanediamine in 10 mL of dioxane. 20 mg of the expected product are thus obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394820B2
Source datasetuspto-grants-2013_03
ORD IDord-980f62dee8b84486864e3d3e9d696d75
Source noteuspto-grants-2013_03