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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2047147Generated: October 31, 2026

Trifluoroacetic acid water → Trifluoroacetic acid

https://huagongshe.com/reaction/2047147

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acid waterHCID 22392675—
ReactantTert-butyl 4-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-cyano-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidine-1-carboxylateHCID 66737967—
ProductTrifluoroacetic acidHCID 6422—
Product7-Amino-3-(6-phenylpyridin-3-yl)-5-(piperidin-4-yl)pyrazolo[1,5-a]pyrimidine-6-carbonitrileHCID 66738863—

Reaction Steps

Tert-butyl 4-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-cyano-3-(6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidine-1-carboxylate (190 mg) was treated with TFA/water (95:5, 3 ml) with stirring for 10 minutes. The reaction mixture was concentrated and lyophilized to yield the title compound as TFA salt.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08591943B2
Source datasetuspto-grants-2013_11
ORD IDord-a017eaafbadd4a2f99d2ac8bb36f594e
Source noteuspto-grants-2013_11