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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1631304Generated: November 2, 2026

Diisopropylethylamine → HCID 86664566, compound

https://huagongshe.com/reaction/1631304

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantEthyl 5-chloropyrazolo(1,5-a)pyrimidine-3-carboxylateHCID 58063474—
ReactantHCID 66847906HCID 66847906—
SolventIsopropanolHCID 3776—
ProductHCID 86664566HCID 8666456696.4%

Reaction Conditions

Temperature120 °C

Reaction Steps

Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (Preparation B, 0.51 g, 2.26 mmol), (R)-2-(5-fluoro-2-(trifluoromethyl)phenyl)pyrrolidine hydrochloride (0.610 g, 2.26 mmol) and diisopropylethylamine (1.12 mL, 6.78 mmol) were suspended in isopropanol (2.5 mL) and heated to 120° C. for 24 hours. The reaction mixture was purified by reverse phase chromatography eluting with 0-75% acetonitrile/water to yield the title compound (0.92 g, 96.4% yield). MS (apci) m/z=423.0.0 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791123B2
Source datasetuspto-grants-2014_07
ORD IDord-bbb7f0c4944f456a96aa7bd5f7d16774
Source noteuspto-grants-2014_07