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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 876507Generated: October 30, 2026

Hydrochloric Acid → 2-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-6-fluoro-8-(trans-5-fluoroazepan-4-yloxy)quinoline

https://huagongshe.com/reaction/876507

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttrans-Tert-butyl 4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)-6-fluoroquinolin-8-yloxy)-5-fluoroazepane-1-carboxylateHCID 131731016—
SolventChloroformHCID 6212—
Product2-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-6-fluoro-8-(trans-5-fluoroazepan-4-yloxy)quinolineHCID 67233623—

Reaction Steps

Enantiomer 1 of trans-tert-butyl 4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)-6-fluoroquinolin-8-yloxy)-5-fluoroazepane-1-carboxylate (Peak 1 from Example 91, Step E; 0.210 g, 0.424 mmol) was dissolved in CHCl3 (4.3 mL). To this solution was added HCl (4.24 mL, 17.0 mmol, 4.0M Dioxane) and the mixture was stirred at ambient temperature for 3 hours. The mixture was filtered through a polypropylene filter and washed with CH2Cl2 and Et2O, slurried in hexanes and then dried carefully in vacuo to provide the desired product as white solid. MS ESI (+) m/z 396.1 (M+1) detected.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987251B2
Source datasetuspto-grants-2015_03
ORD IDord-f03207c8ac284623bf6330319413adaf
Source noteuspto-grants-2015_03