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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1644361Generated: October 27, 2026

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

https://huagongshe.com/reaction/1644361

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrileHCID 60200920—
Reactanttert-Butyl{1-[2-(6-nitro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}carbamateHCID 86642621—
Product4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-nitro-2H-1,4-benzoxazin-3(4H)-oneHCID 66774904—

Reaction Steps

tert-Butyl{1-[2-(6-nitro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}carbamate (Intermediate 82) 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 numberUS08124602B2
Source datasetuspto-grants-2012_02
ORD IDord-1ee3660f90c74115935557590cbae582
Source noteuspto-grants-2012_02