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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1842521Generated: October 31, 2026

Cesium carbonate → HCID 178477899, compound

https://huagongshe.com/reaction/1842521

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-chloro-3-(tetrahydro-2H-pyran-4-yloxy)pyrazineHCID 58548463—
ReactantHCID 178478572HCID 178478572—
SolventDimethylacetamideHCID 31374—
ProductHCID 178477899HCID 17847789983%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of cesium carbonate (0.63 g, 1.94 mmol), 2-(azetidin-3-yl)-5-chloro-1H-benzo[d]imidazole dihydrochloride (as described in Preparation 5) (0.14 g, 0.49 mmol), and 2-chloro-3-(tetrahydro-2H-pyran-4-yloxy)pyrazine (0.10 g, 0.49 mmol) in DMA (1 mL) was heated to 100° C. for 16 h, then cooled to RT. The resulting suspension was partitioned between ethyl acetate and water, the layers were separated, and the organic layer was washed with water (2×), brine, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The resulting oil was purified by silica gel chromatography to give 5-chloro-2-(1-(3-(tetrahydro-2H-pyran-4-yloxy)pyrazin-2-yl)azetidin-3-yl)-1H-benzo[d]imidazole (0.16 g, 0.40 mmol, 83% yield) as a white solid. [M+1] 386. IC50 (uM) 0.9004.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946230B2
Source datasetuspto-grants-2015_02
ORD IDord-87b27aee7c78434c8af8d6c7f5dc766b
Source noteuspto-grants-2015_02