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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2047025Generated: November 4, 2026

Sodium hydride → HCID 70215340, compound

https://huagongshe.com/reaction/2047025

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantN-bromobutanimideHCID 67184—
ReactantTert-butyl 4-(hydroxymethyl)piperidine-1-carboxylateHCID 2764081—
Reactant(5-Chloro-3-quinolin-3-yl-pyrazolo[1,5-a]pyrimidin-7-yl)-bis-(2-trimethylsilanyl-ethoxymethyl)-amineHCID 86664780—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 70215340HCID 7021534095.6%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of tert-butyl 4-(hydroxymethyl)piperidine-1-carboxylate (311 mg, 1.44 mmol) and sodium hydride (60% in mineral oil, 58 mg, 1.44 mmol) in THF (2 ml) under argon at room temperature was added 5-chloro-3-(quinolin-3-yl)-N,N-bis((2(trimethylsilyl)ethoxy)methyl)pyrazolo[1,5-a]pyrimidin-7-amine (400 mg, 0.72 mmol). The mixture was heated at 100° C. for 30 min in microwave. Ethyl acetate (50 ml) was added and the mixture was washed with brine and water, dried over Na2SO4, and concentrated in vacuo. The crude product was dissolved in acetonitrile, followed by the addition of N-bromosuccinimide (193 mg, 1.08 mmol). The reaction mixture was stirred at room temperature for 2 h, concentrated in vacuo and purified via silica gel chromatography (10% to 50% ethyl acetate in hexanes gradient) to yield the title compound (0.56 g, 95% yield). LC-MS: 813 [M+H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08591943B2
Source datasetuspto-grants-2013_11
ORD IDord-14df657f0b90484d8338166944f2cc2c
Source noteuspto-grants-2013_11