HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2189342Generated: October 29, 2026
p-Toluenesulfonic acid → HCID 24855622, compound
https://huagongshe.com/reaction/2189342
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | 1-[4-(4-Aminophenyl)piperazin-1-yl]ethan-1-one | HCID 736269 | — |
| Reactant | HCID 58015809 | HCID 58015809 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 24855622 | HCID 24855622 | 29.5% |
Reaction Steps
To a mixture of 2-chloro-9-(1-ethyl-propyl)-7-methyl-7,9-dihydro-purin-8-one (102 mg, 0.4 mmol) and TsOH (1.6 mL, 0.2 M in 1,4-dioxane) in DMF (0.25 mL) is added 1-[4-(4-amino-phenyl)-piperazin-1-yl]-ethanone (105 mg, 0.5 mmol). The reaction mixture is sealed in a microwave reactor and heated at 140° C. for 30 min. The mixture is diluted with EtOAc and washed with NaHCO3 aqueous solution and brine. The organics are dried over Na2SO4, filtered and concentrated. The crude product is purified by preparative HPLC to give 50 mg of 2-[4-(4-acetyl-piperazin-1-yl)-phenylamino]-9-(1-ethyl-propyl)-7,9-dihydro-purin-8-one.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08324225B2 |
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| Source dataset | uspto-grants-2012_12 |
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| ORD ID | ord-895b381a0ae84f1b87a8e39320aafd90 |
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| Source note | uspto-grants-2012_12 |
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