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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1019957Generated: October 31, 2026

HCID 66747614, compound → HCID 66747609, compound

https://huagongshe.com/reaction/1019957

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 66747614HCID 66747614—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 66747609HCID 6674760990.8%

Reaction Steps

10% Palladium on activated carbon (188 mg, 0.18 mmol, 0.5 eq) is added at room temperature to a stirred solution of (3R,4S)-4-benzyloxycarbonylamino-1-[2-(7-methoxy-quinoxalin-2-yloxy)-ethyl]-piperidine-3-carboxylic acid ethyl ester (200 mg, 0.35 mmol, 1.0 eq) in methanol (20 mL). The mixture is hydrogenated for 4 hours, then filtered through decalite. Solvent is removed to afford (3R,4S)-4-amino-1-[2-(7-methoxy-quinoxalin-2-yloxy)-ethyl]-piperidine-3-carboxylic acid ethyl ester as a yellow oil (119 mg, 81% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08716280B2
Source datasetuspto-grants-2014_05
ORD IDord-1d7f1d3de536466e812f37ef083c583d
Source noteuspto-grants-2014_05