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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1822875Generated: November 1, 2026

Ethoxyacetic acid → HCID 22170710, compound

https://huagongshe.com/reaction/1822875

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthoxyacetic acidHCID 12301—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
ReactantDiisopropylethylamineHCID 81531—
Reactant5-Bromothiazol-2-amine monohydrobromideHCID 2723848—
SolventDichloromethaneHCID 6344—
ProductHCID 22170710HCID 2217071070.2%

Reaction Steps

EDCI (0.53 g, 2.78 mmol) was added to a solution of ethoxyacetic acid (0.29 g, 2.78 mmol) in CH2Cl2 (5 ml) under ice-cooling. After stirring for 1 h, a solution of 2-amino-5-bromothiazole hydrobromide (0.60 g, 2.31 mmol) and diisopropylethylamine (0.40 ml, 2.34 mmol) in CH2Cl2 (5 ml) was added dropwise, and the entire mixture was kept at 0° C. for 1 h, then at room temperature overnight. The solution was evaporated and the residue partitioned between ethyl acetate and water. The ethyl acetate layer was further washed with water, 5% citric acid, water, saturated sodium bicarbonate, and water. Drying over sodium sulfate and evaporation gave a solid which was triturated with isopropyl ether to give the title compound as a beige solid (0.43 g; 70%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07037929B1
Source datasetuspto-grants-2006_05
ORD IDord-8b129707d220460d9567528f7249942b
Source noteuspto-grants-2006_05