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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1874498Generated: October 25, 2026

Ethanol → Tert-butyl {5-[(2-amino[1,2,4]triazolo[1,5-a]pyridin-6-yl)oxy]-2-chlorophenyl}carbamate

https://huagongshe.com/reaction/1874498

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydroxylamine HClHCID 21645—
ReactantDiisopropylethylamineHCID 81531—
ReactantEthyl {[(5-{3-[(tert-butoxycarbonyl)amino]-4-chlorophenoxy}pyridin-2-yl)amino]carbonothioyl}carbamateHCID 57749196—
SolventMethanolHCID 887—
ProductTert-butyl {5-[(2-amino[1,2,4]triazolo[1,5-a]pyridin-6-yl)oxy]-2-chlorophenyl}carbamateHCID 5774908494.2%

Reaction Steps

In the same manner as in Example 23-1 and using ethyl{[(5-{3-[(tert-butoxycarbonyl)amino]-4-chlorophenoxy}pyridin-2-yl)amino]carbonothioyl}carbamate (7.23 g, 15.5 mmol), hydroxylammonium chloride (7.64 g, 0.110 mol), N,N-diisopropylethylamine (13.5 mL, 77.4 mmol), ethanol (50 mL) and methanol (50 mL) as starting materials, the title compound (5.49 g, 92%) was obtained as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304557B2
Source datasetuspto-grants-2012_11
ORD IDord-f892bf166bd2472b8fa1cab4e1741be2
Source noteuspto-grants-2012_11