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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1626490Generated: October 31, 2026

HOAt → HCID 86664395, compound

https://huagongshe.com/reaction/1626490

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHOAtHCID 181649—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant4-tert-Butyl-1,3-thiazol-2-amineHCID 2734202—
Reactant4-(6-Chloro-4-(ethoxycarbonyl)chroman-7-yloxy)benzoic acidHCID 58244395—
SolventEthyl AcetateHCID 8857—
SolventDimethylacetamideHCID 31374—
ProductHCID 86664395HCID 8666439564.7%

Reaction Conditions

Temperature50 °C

Reaction Steps

4-(6-chloro-4-(ethoxycarbonyl)chroman-7-yloxy)benzoic acid (53 mg, 0.141 mmol) and 2-amino-4-tert-butylthiazole (44.0 mg, 0.281 mmol) in DMA were treated with 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (53.9 mg, 0.281 mmol) followed by 1-hydroxy-7-azabenzotriazole (19.1 mg, 0.141 mmol) at ambient temperature. The reaction was heated to 50° C. for 14 hours. The reaction was diluted with ethyl acetate, washed with 1 N HCl, saturated aqueous bicarbonate, and brine. The ethyl acetate layer was dried with sodium sulfate and the product purified on SP1 (20 to 65% Ethyl acetate/hexane) to provide the desired compound (47 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785445B2
Source datasetuspto-grants-2014_07
ORD IDord-21d4756bfd88447cba894a82fa8d7362
Source noteuspto-grants-2014_07