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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1619336Generated: November 2, 2026

Piperidine → HCID 58574591, compound

https://huagongshe.com/reaction/1619336

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantHCID 58574583HCID 58574583—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 58574591HCID 58574591—

Reaction Steps

A solution of (9H-fluoren-9-yl)methyl 9-bromo-3-methyl-6-oxo-3,4-dihydro-1H-pyrazino[2,1-b]quinazoline-2(6H)-carboxylate (2 g, 3.9 mmol, 1 equiv) and piperidine (4 mL) in DCM (50 mL) was stirred at room temperature overnight. The reaction mixture was then diluted with water and extracted with ethyl acetate (3×100 mL). The combined organic layers were dried over Na2SO4. After filtration and concentration, the residue was purified by silica gel chromatography to give the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08772301B2
Source datasetuspto-grants-2014_07
ORD IDord-46a8ee4b02e6464d8465409f49f4f994
Source noteuspto-grants-2014_07