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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1662291Generated: October 26, 2026

Chloroacetic Acid → 7-(2-Thienyl)-3-(beta-D-ribofuranosyl)-3H-imidazo[4,5-b]pyridine

https://huagongshe.com/reaction/1662291

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroacetic AcidHCID 300—
Reactant1,2,3,5-Tetraacetyl-beta-D-ribofuranoseHCID 83064—
ReactantHCID 178420844HCID 178420844—
SolventAmmoniaHCID 222—
Product7-(2-Thienyl)-3-(beta-D-ribofuranosyl)-3H-imidazo[4,5-b]pyridineHCID 4443330429.2%

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of Compound 4 (80 mg, 0.4 mmol), tetra-O-acetyl-β-D-ribofuranose (130 mg, 0.4 mmol) and chloroacetic acid (2 mg) was heated at 200° C. for 5 minutes. The resulting dark syrup was treated with methanolic ammonia (40 ml) at room temperature for 18 hours. After the solvent was distilled off under reduced pressure, the residue was diluted with 30% aqueous CH3CN, and the product was purified by reversed-phase HPLC to give Compound 11 (39 mg, 29%, 2 steps).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08030478B2
Source datasetuspto-grants-2011_10
ORD IDord-098078bdf73f46e9a6b1338245cf9ead
Source noteuspto-grants-2011_10