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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 421296Generated: October 25, 2026

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

https://huagongshe.com/reaction/421296

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 numberUS08097622B2
Source datasetuspto-grants-2012_01
ORD IDord-988c2abbbdeb471fa6b36698d28145c3
Source noteuspto-grants-2012_01