Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1041733Generated: October 25, 2026

Potassium Carbonate → (R)-2-(2,5-dichloro-pyrimidin-4-ylamino)-3-methyl-butyramide

https://huagongshe.com/reaction/1041733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2,4,5-TrichloropyrimidineHCID 237259—
Reactant(R)-2-amino-3-methylbutanamideHCID 444079—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product(R)-2-(2,5-dichloro-pyrimidin-4-ylamino)-3-methyl-butyramideHCID 8663407762.4%

Reaction Steps

A mixture of (R)-2-amino-3-methyl-butyramide (50 mg), 2,4,5-trichloropyrimidine (67 mg) and K2CO3 (116 mg) in DMF (3 mL) was stirred at room temperature for 5 hr. The reaction mixture was diluted with DCM and washed with brine three times. The organic layer was dried with sodium sulfate and concentrated. The residue was purified by silica gel chromatography to provide 60 mg of (R)-2-(2,5-dichloro-pyrimidin-4-ylamino)-3-methyl-butyramide: 1H NMR (300 MHz, CDCl3) 8.2 (s, 1H), 6.2 (bs, 1H), 5.8 (bs, 1H), 5.6 (bs, 1H), 4.6 (dd, 1H), 2.4 (m, 1H), 1.2 (d, 6H). MS (m/e) 263 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08552186B2
Source datasetuspto-grants-2013_10
ORD IDord-ca9b4177ec1d419692fd65d148724ee5
Source noteuspto-grants-2013_10