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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1696736Generated: November 1, 2026

Pyridine → HCID 42629394, compound

https://huagongshe.com/reaction/1696736

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Bromo-2,6-diaminopyridineHCID 11435393—
ReactantHCID 86616721HCID 86616721—
ReactantHCID 178418852HCID 178418852—
SolventAcetonitrileHCID 6342—
ProductHCID 42629394HCID 4262939416.9%

Reaction Conditions

Temperature25 °C

Reaction Steps

4-Chloro-5-(2-methoxy-ethyl)-thiophene-2-sulfonyl chloride (73 mg) was dissolved in acetonitrile (1.5 mL), NaOCN (38 mg) and pyridine (130 mL) was added to the solution. The mixture was stirred for 4 h at 25° C. After that 4-bromo-pyridine-2,6-diamine (50 mg) was added to the mixture as solid. The resulting yellow suspension was stirred for 2 h at 25° C. The suspension was evaporated to dryness, dissolved in DMSO (1.5 mL) and purified with preparative HPLC. N-[(6-amino-4-bromopyridin-2-yl)carbamoyl]-4-chloro-5-(2-methoxyethyl)-thiophene-2-sulfonamide (21 mg, 16.8% yield) was obtained as amorphous white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163778B2
Source datasetuspto-grants-2012_04
ORD IDord-c33149b2defb40d18aae61ea5479af84
Source noteuspto-grants-2012_04