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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 255203Generated: October 25, 2026

tert-Butyl {1-[2-(6-methoxy-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidine-4-yl}carbamate → 4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-methoxy-2H-1,4-benzoxazin 3 (4H)-one

https://huagongshe.com/reaction/255203

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl {1-[2-(6-methoxy-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidine-4-yl}carbamateHCID 56834481—
Reactant1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrileHCID 60200920—
Product4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-methoxy-2H-1,4-benzoxazin 3 (4H)-oneHCID 56834482—

Reaction Steps

tert-Butyl {1-[2-(6-methoxy-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidine-4-yl}carbamate (Intermediate 47) (510 mg, 1.26 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-04eb8addad424870abef98f98cf6951d
Source noteuspto-grants-2011_01