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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 888438Generated: October 26, 2026

3-(4-Aminophenyl)-1,4-dimethylpiperazin-2-one → (R)-5-bromo-3-(4-(1,4-dimethyl-3-oxopiperazin-2-yl)phenylamino)-1-methylpyrazin-2(1H)-one

https://huagongshe.com/reaction/888438

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(4-Aminophenyl)-1,4-dimethylpiperazin-2-oneHCID 57625120—
Reactant5-Bromo-3-(4-(1,4-dimethyl-3-oxopiperazin-2-yl)phenylamino)-1-methylpyrazin-2(1H)-oneHCID 57625129—
Product(R)-5-bromo-3-(4-(1,4-dimethyl-3-oxopiperazin-2-yl)phenylamino)-1-methylpyrazin-2(1H)-oneHCID 57625140—

Reaction Steps

The (R)-isomer of compound 14 can be prepared from the (+)-isomer of 1,4-dimethyl-3-(4-aminophenyl)piperazin-2-one using the same procedure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08247550B2
Source datasetuspto-grants-2012_08
ORD IDord-b97052fd6ca2400da328ddae45a489af
Source noteuspto-grants-2012_08