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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1426969Generated: November 2, 2026

Lithium Hydroxide → HCID 67471034, compound

https://huagongshe.com/reaction/1426969

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantHCID 86691752HCID 86691752—
SolventMeOH tetrahydrofuranHCID 21899815—
ProductHCID 67471034HCID 6747103411.7%

Reaction Conditions

Temperature70 °C

Reaction Steps

To (R)-ethyl 5-(2-(2-(3-aminopropyl)-5-fluoropyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylate hydrochloride (160 mg, 0.356 mmol) in THF/MeOH (2 mL/1 mL) was added lithium hydroxide (1.1 mL, 2.20 mmol). The reaction mixture was heated to 70° C. for 5 hours, then concentrated under reduced pressure. Water (10 mL) was added and the mixture washed with Et2O (2×5 mL), then neutralized with HCl (1M) to pH=4. The aqueous solution was extracted with DCM (2×10 mL). The organic extract was dried with Na2SO4, filtered and concentrated under reduced pressure to give the crude desired product (16.0 mg, 11.7% yield). MS (apci) m/z=385.0 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08933084B2
Source datasetuspto-grants-2015_01
ORD IDord-053745e51e6d407e8b8429431eb43aea
Source noteuspto-grants-2015_01