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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 506100Generated: 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/506100

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 numberUS07781478B2
Source datasetuspto-grants-2010_08
ORD IDord-f1e32c11ea144df3b19f3586956ce8e0
Source noteuspto-grants-2010_08