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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 70648Generated: October 29, 2026

Hydrogen Bromide → HCID 58452756, compound

https://huagongshe.com/reaction/70648

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantWaterHCID 962—
ReactantHCID 67399550HCID 67399550—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 58452756HCID 5845275644%

Reaction Conditions

Temperature65 °C

Reaction Steps

48% hydrobromic acid (0.5 mL) was added to a solution of (5R)-5-[(E)-2-(5-amino-6-methoxypyridin-2-yl)-2-(4-tert-butylphenyl)ethenyl]pyrrolidin-2-one (20 mg) in 1,4-dioxane (1 mL), and the mixture was stirred at 65° C. for 30 minutes. Water was added to the reaction solution, followed by extraction with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate, after which the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform:methanol=10:0→4:1) and crystallized from chloroform-ethyl acetate to give the title compound as a light brown powder (8 mg, 44%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822503B2
Source datasetuspto-grants-2014_09
ORD IDord-87d8b283ec21442a9b8bd1ccb7a69448
Source noteuspto-grants-2014_09