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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1098891Generated: October 25, 2026

Isobutyronitrile → (alphaS)-3-Fluoro-beta-[[1-(4-fluorophenyl)-1H-indazole-5-yl]oxy]-alpha-(2-methylpropyl)benzeneethanamine

https://huagongshe.com/reaction/1098891

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsobutyronitrileHCID 6559—
ReactantCesium carbonateHCID 10796—
Reactant1-(4-fluorophenyl)-5-iodo-1H-indazoleHCID 59251128—
Reactant(2S)-2-Amino-1-(3-fluorophenyl)-4-methyl-pentane-1-olHCID 66812540—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
Product(alphaS)-3-Fluoro-beta-[[1-(4-fluorophenyl)-1H-indazole-5-yl]oxy]-alpha-(2-methylpropyl)benzeneethanamineHCID 6681277323.3%

Reaction Steps

(2S)-2-Amino-1-(3-fluorophenyl)-4-methyl-pentane-1-ol (350 mg, 1.66 mmol), 5-iodo-1-(4-fluorophenyl)-1H-indazole (672.2 mg, 1.99 mmol), cesiumcarbonate (1.08 g, 3.31 mmol), copper (I)-iodide (157.8 mg, 0.83 mmol) and isobutyronitrile (1.75 mL) are stirred in a glass pressure tube at 120° C. for 20 h. The reaction mixture is filtered via a glass microfibre filter, the solvent evaporated and the residue purified by chromatography (silicagel, eluents: ethylacetate/methanol). 162.8 mg (23.3%) of the title compound are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143290B2
Source datasetuspto-grants-2012_03
ORD IDord-7deea78265004092becee1c7789d1ada
Source noteuspto-grants-2012_03