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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1633712Generated: October 31, 2026

Hydrochloric Acid → (4,5-Dihydro-oxazol-2-yl)-{4-[1-(4-fluoro-phenyl)-1H-indol-5-yloxy]-butyl}-methyl-amine

https://huagongshe.com/reaction/1633712

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
Reactant2-Chloroethyl isocyanateHCID 16035—
Reactant{4-[1-(4-Fluoro-phenyl)-1H-indol-5-yloxy]-butyl}-methylamineHCID 18679487—
SolventTetrahydrofuranHCID 8028—
Product(4,5-Dihydro-oxazol-2-yl)-{4-[1-(4-fluoro-phenyl)-1H-indol-5-yloxy]-butyl}-methyl-amineHCID 1867943716.4%

Reaction Steps

300 mg (0.96 mmol) {4-[1-(4-Fluoro-phenyl)-1H-indol-5-yloxy]-butyl}-methylamine in 10 ml THF were treated with 150 mg (1.4 mmol) 2-chloroethylisocyanate and the mixture stirred at room temperature during 10 hours. After addition of 0.2 ml NEt3 the mixture was stirred for an additional hour and treated with 0.1 M aqueous HCl. Extraction with Et2O, drying of the combined organic layers with Na2SO4, Evaporation of the solvent, and column chromatography on silica gel with CH2Cl2/MeOH/NEt3 10:1:0.1 gave 60 mg (16%) (4,5-Dihydro-oxazol-2-yl)-{4-[1-(4-fluoro-phenyl)-1H-indol-5-yloxy]-butyl}-methyl-amine, MS: 382 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06503907B2
Source datasetuspto-grants-2003_01
ORD IDord-534d6daf4726461fa0e9c57a7f25f3f1
Source noteuspto-grants-2003_01