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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 341185Generated: October 31, 2026

Phosphorus tribromide → HCID 136146128, compound

https://huagongshe.com/reaction/341185

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
ReactantHCID 59320812HCID 59320812—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 136146128HCID 136146128124.2%

Reaction Conditions

Temperature80 °C

Reaction Steps

To 1-{3-[7-(6-Methoxy-pyridin-3-yl)-imidazo[1,2-a]pyridin-3-yl]-phenyl}-3-(2,2,2-trifluoro-ethyl)-urea (0.187 g, 0.226 mmol) in DCE (10 ml) was added PBr3 (0.174 ml). The reaction was heated at 80° C. for 3 hours, then partitioned between EtOAc and water, insoluble material filtered off and dried to give 1-{3-[7-(6-Oxo-1,6-dihydro-pyridin-3-yl)-imidazo[1,2-a]pyridin-3-yl]-phenyl}-3-(2,2,2-trifluoro-ethyl)-urea (0.12 g) MS: [M+H]+428

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08895745B2
Source datasetuspto-grants-2014_11
ORD IDord-7af9126c85aa4a13af17073150c936aa
Source noteuspto-grants-2014_11