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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 60902Generated: October 25, 2026

Dimethylbarbituric acid → N-(((2S,3R)-3-Methylpiperidin-2-yl)methyl)-5-(trifluoromethyl)pyridin-2-amine

https://huagongshe.com/reaction/60902

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylbarbituric acidHCID 69860—
Reactant(2S,3R)-Allyl 3-methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidine-1-carboxylateHCID 89748220—
CatalystHCID 178418397HCID 178418397—
SolventDichloromethaneHCID 6344—
ProductN-(((2S,3R)-3-Methylpiperidin-2-yl)methyl)-5-(trifluoromethyl)pyridin-2-amineHCID 89739447—

Reaction Steps

A mixture of (2S,3R)-allyl 3-methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidine-1-carboxylate (0.528 g, 1.48 mmol), Pd(PPh3)4 (0.086 g, 0.0074 mmol) and 1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione (0.14 g, 0.89 mmol) in DCM (20 mL) was stirred at rt. When the starting material was consumed as judged by reverse-phase HPLC analysis, the reaction was concentrated in vacuo. The crude residue was taken up in EtOAc, and washed with satd. aq. NaHCO3, brine, dried (MgSO4), and concentrated to obtain the crude which was purified by silica gel (0˜100% DCM/EtOAc) to afford the title compound. ESI-MS (m/z): 274 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09440982B2
Source datasetuspto-grants-2016_09
ORD IDord-4075ba61013643928e15f440f765ce6f
Source noteuspto-grants-2016_09