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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 256657Generated: October 26, 2026

Hydrogen Bromide → HCID 178419280, compound

https://huagongshe.com/reaction/256657

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantWaterHCID 962—
Reactantethyl 4-[[6-chloro-7-[(4-fluorophenyl)methyl]-7H-purin-8-yl]amino]-1-piperidinecarboxylateHCID 19785322—
ProductHCID 178419280HCID 178419280100%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 7.5 Parts of ethyl 4-[[6-chloro-7-[(4-fluorophenyl)methyl]-7H-purin-8-yl]amino]-1-piperidinecarboxylate and 150 parts of a hydrobromic acid solution 48% in water was stirred overnight at 80° C. The reaction mixture was evaporated. The residue was stirred in 2-propanone. The product was filtered off and dried, yielding 8.5 parts (100%) of 7-[(4-fluorophenyl)methyl]-8-(4-piperidinylamino)-7H-purin-6-ol dihydrobromide as a residue (compound 41).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05258380
Source datasetuspto-grants-1993_11
ORD IDord-acb4245dea9b4eb4aa0ec96d1c9091a9
Source noteuspto-grants-1993_11