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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 373321Generated: October 23, 2026

Norfloxacin → HCID 19812304, compound

https://huagongshe.com/en/reaction/373321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNorfloxacinHCID 4539—
ReactantTriethylamineHCID 8471—
ReactantHCID 19812293HCID 19812293—
SolventDimethylformamideHCID 6228—
ProductHCID 19812304HCID 1981230475%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of norfloxacin (0.96 g, 3 mmol), 4-bromomethyl-1-formylpiperidine (1.26 g 6.1 mmol) and triethylamine (0.44 g, 0.6 mL, 4.3 mmol) in anhydrous dimethylformamide (15 mL) was heated at 100° C. for 2 hours. The solvent was removed under high vacuum and the residue was dissolved in methanol, filtered and precipitated by the addition of diethyl ether to give the product as a white solid (1.0 g, 75% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05162523
Source datasetuspto-grants-1992_11
ORD IDord-4a20cdc51f8d491aa1351202bd29be4a
Source noteuspto-grants-1992_11