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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1710784Generated: October 31, 2026

Ethyl Acetate → HCID 11858052, compound

https://huagongshe.com/reaction/1710784

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
Reactant2-MethylpyrrolidineHCID 13003—
ReactantHCID 59457493HCID 59457493—
SolventAcetonitrileHCID 6342—
ProductHCID 11858052HCID 11858052—

Reaction Conditions

Temperature110 °C

Reaction Steps

A suspension of methyl 4-[(benzylamino)methyl]-2-[4-(3-chloropropoxy)phenyl]-1,3-oxazole-5-carboxylate i94 (0.11 g, 0.27 mmol, 1 eq), 2-methylpyrrolidine (30 μl, 0.32 mmol, 1.2 eq) and potassium carbonate (0.15 g, 1.06 mmol, 4 eq) in acetonitrile (5 ml) is stirred at 110° C. overnight. The mixture is then poured into ethyl acetate (50 ml) and washed with water. The organic layer is dried over magnesium sulfate and concentrated under reduced pressure. Two successive purifications over silicagel (eluent: dichloromethane, methanol, ammonia 90/10/1) and one purification by preparative liquid chromatography (gradient: acetonitrile/water/trifluoroacetic acid 95:5:01 to 5:95:01) yield 6 mg of methyl 4-[(benzylamino)methyl]-2-{4-[3-(2-methyl-1-pyrrolidinyl)propoxy]phenyl}-1,3-oxazole-5-carboxylate 99.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07790720B2
Source datasetuspto-grants-2010_09
ORD IDord-b53d1125e0864bf0a9c3a6519c204c4f
Source noteuspto-grants-2010_09