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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2234984Generated: November 1, 2026

Pyridine → HCID 68681999, compound

https://huagongshe.com/reaction/2234984

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Bromo-2-fluorobenzene-1-sulfonyl chlorideHCID 2736310—
ReactantHCID 58988130HCID 58988130—
SolventDichloromethaneHCID 6344—
ProductHCID 68681999HCID 6868199938.8%

Reaction Steps

6-[(3R,5S)-3,5-Dimethyl-1-piperazinyl]-3-(methyloxy)-2-pyridinamine (D7, Method D) (2.25 mmol) was dissolved in DCM (5 mL) and pyridine (5 mL) and then cooled to 0° C. 4-Bromo-2-fluoro benzenesulfonyl chloride (0.738 g, 2.706 mmol), dissolved in DCM (5 mL) was then added dropwise and the reaction then allowed to warm to rt overnight. The reaction was then evaporated to a minimum and redissolved in DCM (100 mL) and washed with water (2×75 mL), saturated sodium hydrogen carbonate (3×75 mL) and brine (75 mL). The organic layer was dried (MgSO4) and evaporated to give a brown oil which was triturated with methanol and dried at 50° C. under high vac to give the title compound as a pale brown powder (D18) (0.400 g). MS (ES+) m/e 473/475 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07713978B2
Source datasetuspto-grants-2010_05
ORD IDord-d7df2eebecd34a919d8b762be15a45ff
Source noteuspto-grants-2010_05