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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1734091Generated: October 25, 2026

Potassium Iodide → 6-Acetyl-3-ethyl-2-(2-(4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidin-1-yl)ethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine

https://huagongshe.com/reaction/1734091

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
ReactantPotassium CarbonateHCID 11430—
Reactant6-Fluoro-3-piperidin-4-yl-benzo[d]isothiazole hydrochlorideHCID 18504975—
Reactant6-Acetyl-2-(2-chloroethyl)-3-ethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridineHCID 21472043—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
SolventDimethylformamideHCID 6228—
Product6-Acetyl-3-ethyl-2-(2-(4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidin-1-yl)ethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridineHCID 2147201657.8%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 0.5 g of 6-acetyl-2-(2-chloroethyl)-3-ethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine, 0.5 g of 4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidine hydrochloride, 1.5 g of potassium carbonate and 0.5 g of potassium iodide in 25 ml of dimethylformamide and 25 ml of toluene was stirred at 70° C. for 7 hours and poured into water. The toluene layer was washed with water, dried over magnesium sulfate and concentrated. The residue was purified by column chromatography on a silica gel to give 0.5 g of 6-acetyl-3-ethyl-2-(2-(4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidin-1-yl)ethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05532240
Source datasetuspto-grants-1996_07
ORD IDord-64c8d7866b5749b68c9f5733b6a1bb84
Source noteuspto-grants-1996_07