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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 272639Generated: October 23, 2026

Triethylamine → (r)-2-(2-Chloro-5-ethyl-pyrimidin-4-ylamino)-3-methyl-butan-1-ol

https://huagongshe.com/en/reaction/272639

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantD-ValinolHCID 6950587—
Reactant2,4-Dichloro-5-ethylpyrimidineHCID 10012458—
SolventAcetonitrileHCID 6342—
Product(r)-2-(2-Chloro-5-ethyl-pyrimidin-4-ylamino)-3-methyl-butan-1-olHCID 5872763260.9%

Reaction Steps

A solution of 882 mg (5.0 mmol) of 2,4-Dichloro-5-ethyl-pyrimidine and 0.75 ml (5.5 mmol) triethylamine in 5 ml of acetonitrile is mixed with 672 mg (6.5 mmol) of (R)-2-Amino-3-methyl-butan-1-ol. The batch is stirred at room temperature for 16 hours and is finally concentrated by evaporation. The remaining residue is purified by chromatography (DCM/EtOH 90:10). 742 mg of the product is obtained that still contains considerable amounts of (R)-2-Amino-3-methyl-butan-1-ol. The material is used without further purifications.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456191B2
Source datasetuspto-grants-2008_11
ORD IDord-96657b3df174497b88da192d1bcc721a
Source noteuspto-grants-2008_11