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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 520348Generated: October 28, 2026

Ammonium Acetate → HCID 178448379, compound

https://huagongshe.com/reaction/520348

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium AcetateHCID 517165—
ReactantHCID 86690073HCID 86690073—
SolventO-XyleneHCID 7237—
SolventEthyl AcetateHCID 8857—
ProductHCID 178448379HCID 17844837962.9%

Reaction Conditions

Temperature130 °C

Reaction Steps

In a sealed tube, a mixture of (S)-tert-butyl 1-(2-(5-bromopyridin-2-yl)-2-oxoethylamino)-3-methyl-1-oxobutan-2-ylcarbamate (0.1 g) and ammonium acetate (0.186 g) in xylene was heated at 130° C. for 3 hrs. The reaction was diluted with EtOAc, washed with sat. NaHCO3, water and sat. NaCl, dried over anhydrous Na2SO4, filtered and concentrated to yield a yellow oil. The residue was purified by silica chromatography (0-100% EtOAc in hexane) to yield (S)-tert-butyl 1-(4-(5-bromopyridin-2-yl)-1H-imidazol-2-yl)-2-methylpropylcarbamate (0.06 g) as a pale yellow solid. LC/MS (Cond. N-1): [M+H]+ 395.17, RT=3.06 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09326973B2
Source datasetuspto-grants-2016_05
ORD IDord-c14bcb13a4bf487ba7f4909cc66021cc
Source noteuspto-grants-2016_05