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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1876486Generated: November 1, 2026

Piperazine → 5-(9-Isobutyl-6-morpholino-8-(piperazin-1-yl)-9H-purin-2-yl)pyrimidin-2-amine

https://huagongshe.com/reaction/1876486

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant5-(8-Chloro-9-isobutyl-6-morpholino-9H-purin-2-yl)pyrimidin-2-amineHCID 59333549—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product5-(9-Isobutyl-6-morpholino-8-(piperazin-1-yl)-9H-purin-2-yl)pyrimidin-2-amineHCID 59333501—

Reaction Conditions

Temperature130 °C

Reaction Steps

Piperazine (2.0 g, 23 mmol) and N-methylpyrrolidone (10 ml) were added to 5-(8-chloro-9-isobutyl-6-morpholin-4-yl-9H-purin-2-yl)pyrimidin-2-amine (1.0 g, 2.6 mmol) and the resulting mixture was stirred at 130° C. for 4 hours. The reaction mixture was cooled and partitioned with methylene chloride and water, the organic layer was dried over magnesium sulfate, and the solvent was concentrated under reduced pressure. This compound (10 ml in liquid) was stored with N-methylpyrrolidone remaining and used for next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08309546B2
Source datasetuspto-grants-2012_11
ORD IDord-0beadc145db84d479a8e0c6abae201dd
Source noteuspto-grants-2012_11