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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1814959Generated: October 31, 2026

Water → HCID 9947912, compound

https://huagongshe.com/reaction/1814959

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CyanideHCID 9032—
ReactantHCID 54003857HCID 54003857—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 9947912HCID 994791245%

Reaction Conditions

Temperature50 °C

Reaction Steps

Potassium cyanide (280 mg, 4.30 mmol) was added to a solution of (5)-1-(5-methanesulfonyloxyhexyl)-3,7-dimethylxanthine (prepared as described for CT11558) (770 mg, 2.15 mmol) in dimethylsulfoxide (10 ml). After heating at 50° C. for 24 hours, the mixture was poured into water (50 ml) and extracted with ethyl acetate (3x 50 ml). The combined extracts were washed with water (40 ml), saturated aqueous sodium chloride solution (40 ml), dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel eluting with ethyl acetate to provide (R)-1-(5-cyanohexyl)-3,7-dimethylxanthine (CT16575) (280 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06878715B1
Source datasetuspto-grants-2005_04
ORD IDord-111b892535104400bff054245485085d
Source noteuspto-grants-2005_04