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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1750540Generated: November 2, 2026

Diisopropylethylamine → HCID 118308243, compound

https://huagongshe.com/reaction/1750540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant(1S,2S)-trans-N-Boc-1,2-cyclopentanediamineHCID 17040218—
Reactant2-Chloro-5-(trifluoromethyl)pyrazineHCID 18987645—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 118308243HCID 118308243—

Reaction Conditions

Temperature140 °C

Reaction Steps

A solution of 2-chloro-5-(trifluoromethyl)pyrazine (CAS number 799557-87-2; 2.0 g, 10.98 mmol), tert-butyl N-[(1S,2S)-2-aminocyclopentyl]carbamate (CAS number 586961-34-4; 2 g, 9.99 mmol) and DIPEA (5.23 ml, 30.0 mmol) in DMSO (20 ml) was sealed and heated at 140° C. for 3 hours. The reaction mixture was partitioned between ethyl acetate (200 ml) and water (100 ml). The organics were washed with water (2×100 ml), brine (100 ml), dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography (silica, 10-40% ethyl acetate/petrol) to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156829B2
Source datasetuspto-grants-2015_10
ORD IDord-5419bf54d7664a518bf921ad7d35448d
Source noteuspto-grants-2015_10