Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 449030Generated: October 30, 2026

Dimethylformamide → Cyclopentanecarboxylic acid [(3-chloropyrazin-2-yl)-(4-phenoxyphenyl)-methyl]-amide

https://huagongshe.com/reaction/449030

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantDiisopropylethylamineHCID 81531—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
ReactantHCID 59341168HCID 59341168—
ProductCyclopentanecarboxylic acid [(3-chloropyrazin-2-yl)-(4-phenoxyphenyl)-methyl]-amideHCID 8663603181.7%

Reaction Steps

In a 10 mL flask were added C-(3-chloropyrazin-2-yl)-C-(4-phenoxyphenyl)-methylamine (75 mg, 0.24 mmol), DIEA (0.38 mL, 0.0022 mol), TBTU (0.12 g, 0.00036 mol) and DMF (4 mL, 0.05 mol) and the reaction mixture is stirred at rt overnight. Reaction mixture was concentrated in vacuo and washed with sat NaHCO3, brine extracting with DCM. The organic layer was concentrated to give a dark yellow solid. Purification by prep TLC using 50% EtOAc: hexanes afforded 80 mg of the title compound as an off white solid. MS (ES+): m/z 407.86 (50)[MH+]. HPLC: tR=3.75 min (Open Lynx, polar—5 min).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08481733B2
Source datasetuspto-grants-2013_07
ORD IDord-19150e23b9364cc9a3d23c0162dc9e83
Source noteuspto-grants-2013_07