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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 888970Generated: October 30, 2026

Triethylamine → HCID 67426430, compound

https://huagongshe.com/reaction/888970

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-MethylpiperazineHCID 53167—
ReactantHCID 59374559HCID 59374559—
SolventEthanolHCID 702—
ProductHCID 67426430HCID 6742643065.5%

Reaction Steps

Heat a solution of 8-(2-bromophenyl)-6-chloro-2-methyl-9-(tetrahydro-2H-pyran-4-yl)-9H-purine (0.0023 mol, 1.0 g), 1-methyl piperazine (0.0025 mol, 0.25 g, 1.1 equiv.) and triethylamine (0.0025 mol, 0.25 g, 1.1 equiv.) in ethanol (10.0 mL) at 90° C. for 16 h. Concentrate the reaction mixture under reduce pressure. Dissolve the residue in dry dichloromethane and wash with saturated sodium bicarbonate solution, water, and brine. Dry the organic layer over anhydrous sodium sulfate, filter, and concentrate to give the residue. Purify the residue by silica gel chromatography eluting with dichloromethane:methanol 97:3 to give 8-(2-Bromo-phenyl)-2-methyl-6-(4-methyl-piperazin-1-yl)-9-(tetrahydro-pyran-4-yl)-9H-purine (0.71 g). Used as such for the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08252798B2
Source datasetuspto-grants-2012_08
ORD IDord-7a57a16a9c4f46098eae2bdfebb15b9b
Source noteuspto-grants-2012_08