Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 458625Generated: October 26, 2026

Water → Purine-2,6(1H,3H)-dione, 7-(2-bromobenzyl)-8-chloro-1,3-dimethyl-

https://huagongshe.com/reaction/458625

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
Reactant8-ChlorotheophyllineHCID 10661—
Reactant2-Bromobenzyl bromideHCID 76965—
SolventDimethylformamideHCID 6228—
SolventDiisopropylethylamineHCID 81531—
ProductPurine-2,6(1H,3H)-dione, 7-(2-bromobenzyl)-8-chloro-1,3-dimethyl-HCID 598207—

Reaction Conditions

Temperature65 °C

Reaction Steps

8-Chlorotheophylline (10 g, 46.6 mmol) was dissolved in 250 ml of DMF and 8 ml of DIEA, and 2-bromobenzyl bromide (12.2 g, 48.9 mmol) was added. The mixture was stirred at 65° C. for 2 hours. The reaction mixture was added 20 ml of EtOAc and 250 ml of cold water. The white precipitate was collected by filtration to afford compound (10A) as white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07192952B2
Source datasetuspto-grants-2007_03
ORD IDord-e6f9c7aad5964e9089d97203461a5454
Source noteuspto-grants-2007_03