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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1822840Generated: November 1, 2026

1-(2-Hydroxyethyl)piperazine → HCID 10225806, compound

https://huagongshe.com/reaction/1822840

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Hydroxyethyl)piperazineHCID 7677—
ReactantTriphenylphosphineHCID 11776—
ReactantDiethyl azodicarboxylateHCID 5462977—
ReactantHCID 135788285HCID 135788285—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductHCID 10225806HCID 1022580650.4%

Reaction Steps

Triphenylphosphine (0.12 g, 0.44 mmol) and 1-(2-hydroxyethyl)piperazine (25 μl, 0.22 mmol) was dissloved in CH2Cl2 and THF at −15° C. and stirred for 30 min. DEAD (70 μl, 0.44 mmol) was added dropwise at −15° C. 4-(2-ethylanilino)-7-hydroxy-6-methoxy-3-quinolinecarboxamide (0.50 g, 0.15 mmol) was suspended in THF and then added to the reaction. The reaction was stirred over night, allowing the temperature rise to ˜10° C. The solvent was removed under reduced pressure and the product was purified using preparative HPLC affording 34 mg (24%) of a clear oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07037925B2
Source datasetuspto-grants-2006_05
ORD IDord-56184d12e0604e1f9f5c9d862cfe4287
Source noteuspto-grants-2006_05