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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 658378Generated: October 29, 2026

Hydrochloric Acid → (2-Fluoro-4-iodo-phenyl)-(4-[1,2,4]oxadiazol-5-yl-pyridin-3-yl)-amine

https://huagongshe.com/reaction/658378

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
Reactant5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-[1,2,4]oxadiazole-3-carboxylic acid ethyl esterHCID 59026792—
SolventWaterHCID 962—
SolventOxolane--water (1/1)HCID 21881883—
Product(2-Fluoro-4-iodo-phenyl)-(4-[1,2,4]oxadiazol-5-yl-pyridin-3-yl)-amineHCID 5902678192.5%

Reaction Steps

To a solution of 5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-[1,2,4]oxadiazole-3-carboxylic acid ethyl ester (1.8 g, 3.96 mmol) in THF-H2O (1:1)(20 mL) LiOH (0.19 g, 7.93 mmL) was added. The reaction mixture was stirred for 2 hrs at RT. The pH was adjusted to 5 with 1N HCl and the mixture was diluted with water. A solid precipitated and was filtered to give the product (1.4 g). LC/MS (Method A) [4.39 min; 383(M+1)]

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08076486B2
Source datasetuspto-grants-2011_12
ORD IDord-4b4392be67ac4154a3a6ba3709508e6e
Source noteuspto-grants-2011_12