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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 245693Generated: October 29, 2026

Hydrochloric Acid → HCID 67362804, compound

https://huagongshe.com/reaction/245693

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
ReactantSodium HydroxideHCID 14798—
ReactantTrimethylsilyl isocyanateHCID 70696—
ReactantHCID 67363964HCID 67363964—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 67362804HCID 6736280470%

Reaction Steps

1-Bromo-8-methyl-3-(piperidin-4-yl)imidazo[1,5-a]pyrazine (0.169 mmol, 50 mg) was dissolved in dichloromethane (1 ml) and triethylamine (0.545 mmol, 76 μl) and trimethylsilyl isocyanate (0.186 mmol, 25.3 μl) were added at 0° C. After stirring at room temperature for one hour water and 2N hydrochloric acid was added and stirred for 15 minutes. The reaction mixture was basified with 2 N aqueous sodium hydroxide until pH=10 and extracted three times with dichloromethane. The combined organic extracts were dried (sodium sulfate) and concentrate in vacuo to afford 4-(1-bromo-8-methylimidazo[1,5-a]pyrazin-3-yl)piperidine-1-carboxamide (40 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08658794B2
Source datasetuspto-grants-2014_02
ORD IDord-b1ca26e562464c3aa40b6c00aaee3c97
Source noteuspto-grants-2014_02