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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2173784Generated: October 31, 2026

Diisopropylethylamine → HCID 67981354, compound

https://huagongshe.com/reaction/2173784

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethyl 5-chloropyrazine-2-carboxylateHCID 406081—
ReactantHCID 67980897HCID 67980897—
SolventIsopropanolHCID 3776—
ProductHCID 67981354HCID 6798135452%

Reaction Steps

A solution of 3-methyl-1-(4′-(trifluoromethyl)biphenyl-4-yl)butan-1-amine (0.200 g, 0.651 mmol), methyl 5-chloropyrazine-2-carboxylate (124 mg, 0.716 mmol), and diisopropylethylamine (168 mg, 1.30 mmol) in 2-propanol (5 mL) was heated in a microwave reactor at 100° C. for 2 h. The mixture was cooled to room temperature and concentrated. The mixture was concentrated and purified by column chromatography to give methyl 5-(3-methyl-1-(4′-(trifluoromethyl)biphenyl-4-yl)butylamino)pyrazine-2-carboxylate (150 mg, 52%). 1H NMR (400 MHz, CDCl3, δ): 8.75 (s, 1H), 7.87 (s, 1H), 7.68 (d, J=8.8 Hz, 2H), 7.64 (d, J=8.8 Hz, 2H), 7.55 (d, J=8.0 Hz, 2H), 7.43 (d, J=8.0 Hz, 2H), 5.46 (s, 1H), 5.04 (t, 1H), 4.12 (s, 3H), 1.87-1.80 (m, 1H), 1.80-1.60 (m, 2H), 1.02 (d, J=6.4 Hz, 3H), 0.98 (d, J=6.4 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09056834B2
Source datasetuspto-grants-2015_06
ORD IDord-44d0a1a8e1904c999f5f47d0884821c3
Source noteuspto-grants-2015_06