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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1464288Generated: October 31, 2026

Hydrogen Bromide → HCID 19087649, compound

https://huagongshe.com/reaction/1464288

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant1-[4-(4-phenyl-1,2,3,6-tetrahydropyridin-1-yl)butyl]-7-methoxy-2,4(1H,3H)-quinazolinedioneHCID 19087698—
SolventAcetic AcidHCID 176—
ProductHCID 19087649HCID 19087649—

Reaction Steps

A mixture of 1-[4-(4-phenyl-1,2,3,6-tetrahydropyridin-1-yl)butyl]-7-methoxy-2,4(1H,3H)-quinazolinedione (300 mg) and 47% hydrobromic acid (3.8 ml) in acetic acid (6 ml) was refluxed for 24 hours. After dilution with water, precipitates were collected. A crude crystalline material was recrystallized from ethanol to give 1-[4-(4-phenyl-1,2,3,6-tetrahydropyridin-1-yl)butyl]-7-hydroxy-2,4(1H,3H)-quinazolinedione hydrobromide (140 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05304560
Source datasetuspto-grants-1994_04
ORD IDord-315624e9b7124f2ea96d46e6d9e5a4aa
Source noteuspto-grants-1994_04