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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84377Generated: October 27, 2026

Ammonium Chloride → 4-[[2-[5-[[Boc(2-methoxyethyl)amino]methyl]-2-pyridyl]-7-thieno[3,2-b]pyridyl]oxy]-3-fluoroaniline

https://huagongshe.com/reaction/84377

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactanttert-Butyl (6-(7-(2-fluoro-4-nitrophenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl(2-methoxyethyl)carbamateHCID 57919594—
CatalystIronHCID 23925—
SolventWater ethanolHCID 19096565—
Product4-[[2-[5-[[Boc(2-methoxyethyl)amino]methyl]-2-pyridyl]-7-thieno[3,2-b]pyridyl]oxy]-3-fluoroanilineHCID 57919472100%

Reaction Steps

A solution of 125 (443 mg, 0.80 mmol) and NH4Cl (37 mg, 0.68 mmol) in 2:1 mixture of EtOH/water (10.5 mL) was treated with iron powder (380 mg, 6.79 mmol) and stirred at reflux for 1 hour. The reaction mixture was then filtered through a celite pad and concentrated to afford title compound 126 that was used without further purification (440 mg, 100% yield). MS (m/z): 525.2 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846927B2
Source datasetuspto-grants-2014_09
ORD IDord-4c52c816fd0f4880879d425eb908c057
Source noteuspto-grants-2014_09