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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1396695Generated: November 3, 2026

Piperazine → HCID 46916336, compound

https://huagongshe.com/reaction/1396695

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantTriethylamineHCID 8471—
ReactantHCID 50941865HCID 50941865—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 46916336HCID 4691633667%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 2-(4-fluorophenyl)-7-methylsulfonyl-thiazolo[5,4-d]pyrimidin-5-amine (0.40 g, 1.23 mmol) and triethylamine (0.26 ml, 1.85 mmol) in dioxane (6 ml) was added piperazine (0.16 g, 1.85 mmol). The reaction mixture was heated at 60° C. for 5 hours. After cooling, the volatiles were removed under reduced pressure. The crude residue was purified by flash chromatography on silica (CH2Cl2/MeOH 15:1), furnishing the title compound as a light yellow solid (0.27 g, 67%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08901132B2
Source datasetuspto-grants-2014_12
ORD IDord-3188ad28f4e546d88ccd5fe7deb2f394
Source noteuspto-grants-2014_12