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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677698Generated: October 30, 2026

Pyridinium hydrochloride → HCID 44469657, compound

https://huagongshe.com/reaction/1677698

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium hydrochlorideHCID 21584435—
ReactantHCID 58138846HCID 58138846—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductHCID 44469657HCID 44469657—

Reaction Steps

1-(4-Fluoro-phenyl)-1H-indazole-4-carboxylic acid (2-methoxy-pyridin-4-ylmethyl)-amide (38 mg, 0.10 mmol) and pyridinium hydrochloride (117 mg, 1.01 mmol) were heated to 125° C. in a sealed tube. After 10 minutes, the mixture was cooled to room temperature and diluted with ethyl acetate (3 mL) and water (3 mL). The organic layer was washed with water (3×3 mL) and concentrated at 45° C. under a stream of nitrogen. The residue was dissolved in CH2Cl2 (3 mL) and concentrated (repeated 3 times). The solid was triturated with ether (3 mL), filtered and air dried to afford the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008327B2
Source datasetuspto-grants-2011_08
ORD IDord-634ee8f8580e4b84a5999e2e104e6845
Source noteuspto-grants-2011_08