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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 384638Generated: October 31, 2026

Trifluoroacetic acid → HCID 42610297, compound

https://huagongshe.com/reaction/384638

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTert-butyl 4-((2-(5-cyanopyrazin-2-ylamino)-5-(phenylcarbamoyl)pyridin-4-ylamino)methyl)piperidine-1-carboxylateHCID 59613455—
SolventDichloromethaneHCID 6344—
ProductHCID 42610297HCID 4261029765.3%

Reaction Steps

TFA (0.05 mL) was added to a solution of tert-butyl 4-((2-(5-cyanopyrazin-2-ylamino)-5-(phenylcarbamoyl)pyridin-4-ylamino)methyl)piperidine-1-carboxylate (11.0 mg, 0.02 mmol) in dichloromethane (0.5 mL) at room temperature. After 20 minutes, solvent was evaporated and the crude product was purified by ion exchange on SCX-II acidic resin (500 mg) eluting with methanol, then 2M ammonia-methanol. The basic fractions were combined and solvent was evaporated to give 6-(5-cyanopyrazin-2-ylamino)-N-phenyl-4-(piperidin-4-ylmethylamino)nicotinamide as a yellow solid (5.6 mg, 63%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08367658B2
Source datasetuspto-grants-2013_02
ORD IDord-f7618e3c0c06454d841b6b9bd9664ab5
Source noteuspto-grants-2013_02