Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1295052Generated: October 30, 2026

Ethyl isocyanate → 4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenyl ethylcarbamate

https://huagongshe.com/reaction/1295052

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl isocyanateHCID 8022—
Reactant4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenolHCID 135524867—
Solvent1,4-DioxaneHCID 31275—
Product4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenyl ethylcarbamateHCID 6888295774.8%

Reaction Steps

A solution of 4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenol (0.30 g, 1.0 mmol) and ethyl isocyanate (0.080 mL, 1.0 mmol) in 10 mL of dioxane was heated at 80° C. for 48 hours. The reaction mixture was concentrated in vacuo. The residue was crystallized from EtOAc/hexane to give 0.275 g of the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07241791B2
Source datasetuspto-grants-2007_07
ORD IDord-df1045168c6d43668ed8792b2321cbe1
Source noteuspto-grants-2007_07