Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 255210Generated: October 30, 2026

1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrile → 4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-fluoro-2H-1,4-benzoxazin-3(4H)-one

https://huagongshe.com/reaction/255210

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrileHCID 60200920—
Reactanttert-Butyl {1-[2-(6-fluoro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}carbamateHCID 86642612—
Product4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-fluoro-2H-1,4-benzoxazin-3(4H)-oneHCID 66774353—

Reaction Steps

tert-Butyl {1-[2-(6-fluoro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}carbamate (Intermediate 55) (640 mg, 1.56 mmol) was reacted as described for Intermediate 14. The crude trifluoro acetate of the title compound was used without further purification for the next step (quantitative yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07875715B2
Source datasetuspto-grants-2011_01
ORD IDord-85072b5bae104868adcd6001a7d03898
Source noteuspto-grants-2011_01