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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 502218Generated: November 3, 2026

Methyl iodide → 1-ethyl-6-methoxy-2-[4-(5-methyl-1,1-dioxo-1lambda6-[1,2,5]thiadiazolidin-2-yl)-phenyl]-1H-indole-3-carbonitrile

https://huagongshe.com/reaction/502218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 59426210HCID 59426210—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product1-ethyl-6-methoxy-2-[4-(5-methyl-1,1-dioxo-1lambda6-[1,2,5]thiadiazolidin-2-yl)-phenyl]-1H-indole-3-carbonitrileHCID 59425957—

Reaction Steps

To a solution of 2-[4-(1,1-dioxo-1λ6-[1,2,5]thiadiazolidin-2-yl)phenyl]-1-ethyl-6-methoxy-1H-indole-3-carbonitrile (34 mg, 0.086 mmol) in anhydrous DMF (1.0 mL) is added potassium carbonate (25 mg, 0.18 mmol) and iodomethane (20.4 mg, 0.144 mmol). The mixture is stirred at room temperature for 2 h and then diluted with water (6.0 mL) to give a precipitate. The precipitate is filtered, washed with water and dried to give 1-ethyl-6-methoxy-2-[4-(5-methyl-1,1-dioxo-1λ6-[1,2,5]thiadiazolidin-2-yl)-phenyl]-1H-indole-3-carbonitrile, compound 726, as a white solid (35 mg, 98% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07772271B2
Source datasetuspto-grants-2010_08
ORD IDord-ebd7674d71644587b4a32718d34f9d97
Source noteuspto-grants-2010_08