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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 393905Generated: October 26, 2026

Hydrochloric Acid → HCID 135673971, compound

https://huagongshe.com/reaction/393905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5-(5-acetyl-2-butoxy-3-pyridinyl)-3-ethyl-2-(1-ethyl-3-azetidinyl)-2,6-dihydro-7H-pyrazolo(4,3-d)pyrimidin-7-oneHCID 135515565—
SolventEthyl AcetateHCID 8857—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 135673971HCID 135673971—

Reaction Conditions

Temperature50 °C

Reaction Steps

A solution of 4M hydrochloric acid in dioxan (1 mL) was added to ethyl acetate (3 mL). An aliquot of this solution (0.3 mL), was then added to a solution of 5-(5-acetyl-2-butoxy-3-pyridinyl)-3-ethyl-2-(1-ethyl-3-azetidinyl)-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (132 mg, 0.3 mmol) in ethyl acetate (5 mL) giving a precipitate. This mixture was warmed to 50° C. for 10 minutes, then allowed to cool to 0° C. The resulting powder was filtered, washed with ethyl acetate and dried at 50° C. in vacuo, to afford the title compound, 118 mg (81%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06809200B2
Source datasetuspto-grants-2004_10
ORD IDord-1887041d39564e879a62a73f588946ef
Source noteuspto-grants-2004_10