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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1878384Generated: November 1, 2026

Triethylamine → HCID 57917582, compound

https://huagongshe.com/reaction/1878384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant4-Amino-3-fluorobenzoic acidHCID 9971—
ReactantPropylphosphonic anhydrideHCID 111923—
ReactantHCID 57917674HCID 57917674—
SolventDichloromethaneHCID 6344—
ProductHCID 57917582HCID 5791758274.4%

Reaction Steps

1-Propanephosphonic acid cyclic anhydride (1.967 g, 3 mmol, 1.840 mL, 50% solution in ethyl acetate) was added dropwise to a solution of (R)N-tert-butyl-3-((2-methylpiperazin-1-yl)methyl)benzamide (500 mg, 1.7 mmol), 4-amino-3-fluorobenzoic acid (239.7 mg, 1.5 mmol) and triethylamine (469 mg, 4.5 mmol, 1.84 mL) in dichloromethane. The reaction was stirred at room temperature for 2 hours. The dichloromethane was removed under reduced pressure and the residue was taken up in ethyl acetate, washed with water, sodium hydrogen carbonate and brine. The organic layer was concentrated under vacuum to afford the title compound (476.3 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314091B2
Source datasetuspto-grants-2012_11
ORD IDord-c47a4f4b93fe4c72b12dd032d618dd2f
Source noteuspto-grants-2012_11