HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1475470Generated: November 2, 2026
Potassium Carbonate → (2R,5S)-4-Benzyl-2-methyl-5-(2-oxo-oxazolidin-3-ylmethyl)-piperazine-1-carboxylic acid tert-butyl ester
https://huagongshe.com/reaction/1475470
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Oxazolidinone | HCID 73949 | — |
| Reactant | tert-butyl (2R,5R)-4-benzyl-5-(chloromethyl)-2-methylpiperazine-1-carboxylate | HCID 86724019 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | (2R,5S)-4-Benzyl-2-methyl-5-(2-oxo-oxazolidin-3-ylmethyl)-piperazine-1-carboxylic acid tert-butyl ester | HCID 70980546 | 78.6% |
Reaction Steps
K2CO3 (610 mg, 4.4 mmol), KI (730 mg, 4.4 mmol) and oxazolidinone (170 mg, 2.2 mmol) were added to a solution of (2R,5R)-4-benzyl-5-chloromethyl-2-methyl-piperazine-1-carboxylic acid tert-butyl ester (500 mg, 1.47 mmol) in acetonitrile (10 mL). The reaction was stirred at 60° C. for 3 days. The solids were filtered off and the solvent was removed in vacuo. Chromatography (40% EtOAc in petrol) gave the title compound (450 mg) as a white solid, MS: [M+H]+=390.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09018214B2 |
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| Source dataset | uspto-grants-2015_04 |
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| ORD ID | ord-072f9e6939a944b8958e47db31b564c7 |
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| Source note | uspto-grants-2015_04 |
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