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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1966513Generated: October 28, 2026

Hydrogen Bromide → HCID 68493794, compound

https://huagongshe.com/reaction/1966513

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 25217467HCID 25217467—
SolventWaterHCID 962—
ProductHCID 68493794HCID 68493794149.4%

Reaction Conditions

Temperature70 °C

Reaction Steps

(3,4-Dichlorobenzyl)-{2-methyl-8-[4-(toluene-4-sulfonyl)-piperazin-1-yl]-quinolin-4-yl}-amine (example 17, 40 mg, 0.072 mmole) and a mixture of HBr/glacial acetic acid (33%, 1 mL)/0.2 mL) were stirred at 70° C. for 3 hrs. The content of the flask was diluted with water and extracted with ethyl acetate. The aqueous phase was alkalized and extracted with dichloromethane. The organic phases were washed with saturated NaCl solution and concentrated. The residue was crystallized as hydrochloride from isopropanol/iso-propyl ether/ethanol/HCl to give a light fawn salt (17 mg, 50%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420670B2
Source datasetuspto-grants-2013_04
ORD IDord-1280d39e317d4b56b0c2acff04ec9aa3
Source noteuspto-grants-2013_04